The Western United States (also called the American West, the Western States, the Far West, the Western territories, and the West) is
one of the four census regions defined by the United States Census Bureau
The United States Census Bureau, officially the Bureau of the Census, is a principal agency of the Federal statistical system, U.S. federal statistical system, responsible for producing data about the American people and American economy, econ ...
.
As American settlement in the U.S.
expanded westward, the meaning of the term ''the West'' changed. Before around 1800, the crest of the
Appalachian Mountains
The Appalachian Mountains, often called the Appalachians, are a mountain range in eastern to northeastern North America. The term "Appalachian" refers to several different regions associated with the mountain range, and its surrounding terrain ...
was seen as the
western frontier. The frontier moved westward and eventually the lands west of the
Mississippi River
The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...
were considered ''the West''.
The U.S. Census Bureau's definition of the 13 westernmost states includes the
Rocky Mountains
The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...
and the
Great Basin to the
Pacific Coast, and the mid-Pacific islands state, Hawaii. To the east of the Western United States is the
Midwestern United States
The Midwestern United States (also referred to as the Midwest, the Heartland or the American Midwest) is one of the four census regions defined by the United States Census Bureau. It occupies the northern central part of the United States. It ...
and the
Southern United States
The Southern United States (sometimes Dixie, also referred to as the Southern States, the American South, the Southland, Dixieland, or simply the South) is List of regions of the United States, census regions defined by the United States Cens ...
, with
Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
to the north and
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
to the south.
The West contains several major
biome
A biome () is a distinct geographical region with specific climate, vegetation, and animal life. It consists of a biological community that has formed in response to its physical environment and regional climate. In 1935, Tansley added the ...
s, including
arid and
semi-arid plateau
In geology and physical geography, a plateau (; ; : plateaus or plateaux), also called a high plain or a tableland, is an area of a highland consisting of flat terrain that is raised sharply above the surrounding area on at least one side. ...
s and
plain
In geography, a plain, commonly known as flatland, is a flat expanse of land that generally does not change much in elevation, and is primarily treeless. Plains occur as lowlands along valleys or at the base of mountains, as coastal plains, and ...
s, particularly in the
American Southwest;
forest
A forest is an ecosystem characterized by a dense ecological community, community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, ...
ed
mountain
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher t ...
s, including three major ranges, the
Sierra Nevada
The Sierra Nevada ( ) is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primari ...
, the
Cascades, and Rocky Mountains; the long
coastal shoreline
A coast (coastline, shoreline, seashore) is the land next to the sea or the line that forms the boundary between the land and the ocean or a lake. Coasts are influenced by the topography of the surrounding landscape and by aquatic erosion, su ...
of the Pacific Coast; and the
rainforest
Rainforests are forests characterized by a closed and continuous tree Canopy (biology), canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforests can be generally classified as tropi ...
s of the
Pacific Northwest
The Pacific Northwest (PNW; ) is a geographic region in Western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common ...
.
Geographic definition

The Western United States is the largest region of the country, covering nearly half the land area of the contiguous
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
. It is also the most geographically diverse, incorporating geographic regions such as the
temperate rainforests of the
Northwest
The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A '' compass rose'' is primarily composed of four cardinal directions—north, east, south, and west— ...
, the highest mountain ranges, including the
Rocky Mountains
The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...
, the
Sierra Nevada
The Sierra Nevada ( ) is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primari ...
, and the
Cascade Range
The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington (state), Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as m ...
, numerous
glaciers
A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires ...
, and the western edge of the
Great Plains
The Great Plains is a broad expanse of plain, flatland in North America. The region stretches east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. They are the western part of the Interior Plains, which include th ...
. It also contains the majority of the desert areas located in the United States. The
Mojave and the
Great Basin deserts lie entirely within the Western region, along with parts of the
Sonoran and
Chihuahuan deserts (the latter extends significantly into Texas, while both extend into
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
). Given this expansive and diverse geography it is no wonder that the region is difficult to define precisely. Sensing a possible shift in the popular understanding of the West as a region in the early 1990s, historian Walter Nugent conducted a survey of three groups of professionals with ties to the region: a large group of Western historians (187 respondents), and two smaller groups, 25 journalists and publishers and 39 Western authors.
A majority of the historian respondents placed the eastern boundary of the West east of the Census definition out on the eastern edge of the
Great Plains
The Great Plains is a broad expanse of plain, flatland in North America. The region stretches east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. They are the western part of the Interior Plains, which include th ...
or on the
Mississippi River
The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...
. The survey respondents as a whole showed just how little agreement there was on the boundaries of the West.
Subregions
The region is split into two smaller units or divisions, by the U.S. Census Bureau:
;
Mountain states:
Montana
Montana ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the south, an ...
,
Wyoming
Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...
,
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
,
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
,
Idaho
Idaho ( ) is a landlocked U.S. state, state in the Pacific Northwest and Mountain states, Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington (state), ...
,
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
,
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
, and
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
;
Pacific states:
Washington,
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
,
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
,
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
, and
Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...
Other classifications distinguish between
Southwest
The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A '' compass rose'' is primarily composed of four cardinal directions—north, east, south, and west— ...
and
Northwest
The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A '' compass rose'' is primarily composed of four cardinal directions—north, east, south, and west— ...
. Arizona, New Mexico,
West Texas, and the
Oklahoma panhandle are typically considered to be the Southwest states. Meanwhile, the states of Montana, Idaho, Oregon, and Washington can be considered part of the Northwest or
Pacific Northwest
The Pacific Northwest (PNW; ) is a geographic region in Western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common ...
.
The term
West Coast is commonly used to refer to just California, Oregon, Washington, and Alaska, whereas Hawaii is more geographically isolated from the
continental U.S. and does not necessarily fit in any of these
subregions.
Outlying areas

The three inhabited
Pacific
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is bounded by the cont ...
U.S. territories (
American Samoa
American Samoa is an Territories of the United States, unincorporated and unorganized territory of the United States located in the Polynesia region of the Pacific Ocean, South Pacific Ocean. Centered on , it is southeast of the island count ...
,
Guam
Guam ( ; ) is an island that is an Territories of the United States, organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. Guam's capital is Hagåtña, Guam, Hagåtña, and the most ...
and the
Northern Mariana Islands
The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands (CNMI), is an Territories of the United States, unincorporated territory and Commonwealth (U.S. insular area), commonwealth of the United States consistin ...
) are sometimes considered part of the Western United States. American Samoa is in
Polynesia
Polynesia ( , ) is a subregion of Oceania, made up of more than 1,000 islands scattered over the central and southern Pacific Ocean. The indigenous people who inhabit the islands of Polynesia are called Polynesians. They have many things in ...
in the
South Pacific Ocean, while Guam and the Northern Mariana Islands are in the
Mariana Islands in the western
North Pacific Ocean. Guam and the Northern Mariana Islands have district courts within the
9th Circuit, which includes western states such as California and Nevada. (See
District Court of Guam and
District Court for the Northern Mariana Islands). American Samoa, Guam, and the Northern Mariana Islands are also considered part of the western U.S. by the
U.S. National Park Service, the
Federal Reserve Bank system,
FEMA, and the
USGS
The United States Geological Survey (USGS), founded as the Geological Survey, is an government agency, agency of the United States Department of the Interior, U.S. Department of the Interior whose work spans the disciplines of biology, geograp ...
.
Demographics

The population distribution by race in the Western United States (2022):
* 51.9%
White
White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...
(47.1%
non-Hispanic)
* 30.8%
Hispanic or Latino ethnicity (of any race)
* 10.8%
Asian (10.6% non-Hispanic)
* 4.5%
Black
Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without chroma, like white and grey. It is often used symbolically or figuratively to represent darkness.Eva Heller, ''P ...
or
African-American (4.3% non-Hispanic)
* 1.9%
American Indian or
Alaska Native
Alaska Natives (also known as Native Alaskans, Alaskan Indians, or Indigenous Alaskans) are the Indigenous peoples of the Americas, Indigenous peoples of Alaska that encompass a diverse arena of cultural and linguistic groups, including the I ...
(1.1% non-Hispanic)
* 0.6%
Pacific Islander
Pacific Islanders, Pasifika, Pasefika, Pacificans, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe th ...
(0.6% non-Hispanic)
* 13.3%
Some other race (0.6% non-Hispanic)
* 17.0%
Two or more races (5.0% non-Hispanic)
As defined by the
United States Census Bureau
The United States Census Bureau, officially the Bureau of the Census, is a principal agency of the Federal statistical system, U.S. federal statistical system, responsible for producing data about the American people and American economy, econ ...
, the Western
region
In geography, regions, otherwise referred to as areas, zones, lands or territories, are portions of the Earth's surface that are broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and ...
of the United States includes 13 states,
with a total 2020 population of 78,588,572.
The West is one of the most sparsely settled areas in the United States with . Only
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
with ,
Washington with , and
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
with exceed the national average of . As of 2022, just under half of the 78.7 million residents of the West live in
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
.

The entire Western region has also been strongly influenced by
European,
Hispanic or Latino,
Asian and
Native Americans; it contains the largest number of minorities in the U.S. While most of the studies of racial dynamics in America such as riots in
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
have been written about
European and
African-Americans
African Americans, also known as Black Americans and formerly also called Afro-Americans, are an American racial and ethnic group that consists of Americans who have total or partial ancestry from any of the Black racial groups of Africa. ...
, in many cities in the West and
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
,
whites and
blacks together are less than half the population because of the preference for the region by
Hispanics
The term Hispanic () are people, cultures, or countries related to Spain, the Spanish language, or broadly. In some contexts, especially within the United States, "Hispanic" is used as an ethnic or meta-ethnic term.
The term commonly appli ...
and
Asians.
African and
European Americans, however, continue to wield a stronger political influence because of the lower rates of citizenship and voting among
Asians and
Hispanics
The term Hispanic () are people, cultures, or countries related to Spain, the Spanish language, or broadly. In some contexts, especially within the United States, "Hispanic" is used as an ethnic or meta-ethnic term.
The term commonly appli ...
.
According to 2022 estimates from the Census Bureau, the largest ancestries reported in the West are
Mexican (24.2%),
German (10.1%),
English (9.5%),
Irish (7.2%),
Italian (3.5%),
Filipino (3.4%), and
Chinese (3.3%).
The West also contains much of the
Native American population in the U.S., particularly in the large
reservations in the
Mountain
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher t ...
and
Desert States. As of 2022, the West is home to 365,351
Navajo, 109,208
Apache, and 78,364
Blackfeet, as well as 276,082 people identifying as
Indigenous Mexican.
The largest concentrations for
African-Americans
African Americans, also known as Black Americans and formerly also called Afro-Americans, are an American racial and ethnic group that consists of Americans who have total or partial ancestry from any of the Black racial groups of Africa. ...
in the West can be found in
San Diego
San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
,
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
,
Oakland,
Sacramento,
Fresno,
San Francisco
San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
,
Seattle
Seattle ( ) is the most populous city in the U.S. state of Washington and in the Pacific Northwest region of North America. With a population of 780,995 in 2024, it is the 18th-most populous city in the United States. The city is the cou ...
,
Tacoma,
Phoenix,
Las Vegas
Las Vegas, colloquially referred to as Vegas, is the most populous city in the U.S. state of Nevada and the county seat of Clark County. The Las Vegas Valley metropolitan area is the largest within the greater Mojave Desert, and second-l ...
,
Denver
Denver ( ) is a List of municipalities in Colorado#Consolidated city and county, consolidated city and county, the List of capitals in the United States, capital and List of municipalities in Colorado, most populous city of the U.S. state of ...
, and
Colorado Springs.
The Western United States has a higher
sex ratio
A sex ratio is the ratio of males to females in a population. As explained by Fisher's principle, for evolutionary reasons this is typically about 1:1 in species which reproduce sexually. However, many species deviate from an even sex ratio, ei ...
than any other region in the United States.
Because the tide of development had not yet reached most of the West when
conservation became a national issue, agencies of the
federal government
A federation (also called a federal state) is an entity characterized by a political union, union of partially federated state, self-governing provinces, states, or other regions under a #Federal governments, federal government (federalism) ...
own and manage vast areas of land. (The most important among these are the
National Park Service
The National Park Service (NPS) is an List of federal agencies in the United States, agency of the Federal government of the United States, United States federal government, within the US Department of the Interior. The service manages all List ...
and the
Bureau of Land Management within the
Interior Department, and the
U.S. Forest Service within the
Agriculture Department.)
National park
A national park is a nature park designated for conservation (ethic), conservation purposes because of unparalleled national natural, historic, or cultural significance. It is an area of natural, semi-natural, or developed land that is protecte ...
s are reserved for recreational activities such as
fishing
Fishing is the activity of trying to catch fish. Fish are often caught as wildlife from the natural environment (Freshwater ecosystem, freshwater or Marine ecosystem, marine), but may also be caught from Fish stocking, stocked Body of water, ...
,
camping,
hiking, and
boating
Boating is the leisurely activity of travelling by boat, or the recreational use of a boat whether powerboats, sailboats, or man-powered vessels (such as rowing and paddle boats), focused on the travel itself, as well as sports activities, suc ...
, but other government lands also allow commercial activities like
ranch
A ranch (from /Mexican Spanish) is an area of landscape, land, including various structures, given primarily to ranching, the practice of raising grazing livestock such as cattle and sheep. It is a subtype of farm. These terms are most often ap ...
ing,
logging
Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidder, skidding, on-site processing, and loading of trees or trunk (botany), logs onto logging truck, trucks[mining
Mining is the Resource extraction, extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agriculture, agricultural processes, or feasib ...]
. In recent years, some local residents who earn their livelihoods on federal land have come into conflict with the land's managers, who are required to keep land use within environmentally acceptable limits.
The largest city in the region is
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
, located on the
West Coast. Other
West Coast cities include
San Diego
San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
,
San Bernardino,
San Jose,
San Francisco
San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
,
Oakland,
Bakersfield,
Fresno,
Sacramento,
Seattle
Seattle ( ) is the most populous city in the U.S. state of Washington and in the Pacific Northwest region of North America. With a population of 780,995 in 2024, it is the 18th-most populous city in the United States. The city is the cou ...
,
Tacoma,
Anchorage,
Spokane, and
Portland – some of which are dozens of miles inland. Prominent cities in the
Mountain States include
Denver
Denver ( ) is a List of municipalities in Colorado#Consolidated city and county, consolidated city and county, the List of capitals in the United States, capital and List of municipalities in Colorado, most populous city of the U.S. state of ...
,
Colorado Springs,
Phoenix,
Tucson,
Albuquerque,
Las Vegas
Las Vegas, colloquially referred to as Vegas, is the most populous city in the U.S. state of Nevada and the county seat of Clark County. The Las Vegas Valley metropolitan area is the largest within the greater Mojave Desert, and second-l ...
,
Reno,
Salt Lake City
Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, the most populous county in the state. The city is the core of the Salt Lake Ci ...
,
Boise,
Billings, and
Missoula.
Natural geography

Along the
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
coast lie the
Coast Ranges, which, while not approaching the scale of the
Rocky Mountains
The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...
, are formidable nevertheless. They collect a large part of the airborne moisture moving in from the ocean. East of the Coast Ranges lie several cultivated fertile
valley
A valley is an elongated low area often running between hills or mountains and typically containing a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over ...
s, notably the
San Joaquin and
Sacramento valleys of
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
and the
Willamette Valley of
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
.

Beyond the valleys lie the
Sierra Nevada
The Sierra Nevada ( ) is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primari ...
in the south and the
Cascade Range
The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington (state), Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as m ...
in the north.
Mount Whitney, at the tallest peak in the contiguous 48 states, is in the
Sierra Nevada
The Sierra Nevada ( ) is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primari ...
.
The Cascades are also volcanic.
Mount Rainier
Mount Rainier ( ), also known as Tahoma, is a large active stratovolcano in the Cascade Range of the Pacific Northwest in the United States. The mountain is located in Mount Rainier National Park about south-southeast of Seattle. With an off ...
, a volcano in
Washington, is also over .
Mount St. Helens, a volcano in
the Cascades,
erupted explosively in 1980. A major volcanic eruption at
Mount Mazama around 4860 BC formed
Crater Lake. These mountain ranges see heavy precipitation, capturing most of the moisture that remains after the Coast Ranges, and creating a
rain shadow
A rain shadow is an area of significantly reduced rainfall behind a mountainous region, on the side facing away from prevailing winds, known as its leeward side.
Evaporated moisture from body of water, bodies of water (such as oceans and larg ...
to the east forming vast stretches of arid land. These dry areas encompass much of
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
,
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
, and
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
. The
Mojave Desert
The Mojave Desert (; ; ) is a desert in the rain shadow of the southern Sierra Nevada mountains and Transverse Ranges in the Southwestern United States. Named for the Indigenous peoples of the Americas, indigenous Mohave people, it is located pr ...
and
Sonoran Desert along with other deserts are found here.

Beyond the deserts lie the
Rocky Mountains
The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...
. In the north, they run almost immediately east of the
Cascade Range
The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington (state), Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as m ...
, so that the desert region is only a few miles wide by the time one reaches the Canada–US border.
The Rockies are hundreds of miles wide and run uninterrupted from
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
to
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
. The Rocky Mountain Region is the highest overall area of the United States, with an average elevation of above . The tallest peaks of
the Rockies, 54 of which are over , are found in central and western
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
. East of the Rocky Mountains is the Great Plains, the western portions (for example, the eastern half of Colorado) of which are generally considered to be part of the western United States.
The West has several long rivers that empty into the
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
, while the eastern rivers run into the
Gulf of Mexico
The Gulf of Mexico () is an oceanic basin and a marginal sea of the Atlantic Ocean, mostly surrounded by the North American continent. It is bounded on the northeast, north, and northwest by the Gulf Coast of the United States; on the southw ...
. The
Mississippi River
The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...
forms the easternmost possible boundary for the West today. The
Missouri River
The Missouri River is a river in the Central United States, Central and Mountain states, Mountain West regions of the United States. The nation's longest, it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Moun ...
, a tributary of the
Mississippi
Mississippi ( ) is a U.S. state, state in the Southeastern United States, Southeastern and Deep South regions of the United States. It borders Tennessee to the north, Alabama to the east, the Gulf of Mexico to the south, Louisiana to the s ...
, flows from its headwaters in the
Rocky Mountains
The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...
eastward across the
Great Plains
The Great Plains is a broad expanse of plain, flatland in North America. The region stretches east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. They are the western part of the Interior Plains, which include th ...
, a vast
grassy plateau, before sloping gradually down to the forests and hence to the
Mississippi
Mississippi ( ) is a U.S. state, state in the Southeastern United States, Southeastern and Deep South regions of the United States. It borders Tennessee to the north, Alabama to the east, the Gulf of Mexico to the south, Louisiana to the s ...
. The
Colorado River
The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...
snakes through the
Mountain states, at one point forming the
Grand Canyon
The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is long, up to wide and attains a depth of over a mile ().
The canyon and adjacent rim are contained within Grand Canyon Nati ...
.
The
Colorado River
The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...
is a major source of water in the Southwest and many dams, such as the
Hoover Dam, form reservoirs along it. So much water is drawn for drinking water throughout the West and irrigation in
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
that in most years, water from the
Colorado River
The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...
no longer reaches the
Gulf of California. The
Columbia River
The Columbia River (Upper Chinook language, Upper Chinook: ' or '; Sahaptin language, Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river headwater ...
, the largest river in volume flowing into the
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
from
North America
North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
, and its tributary, the
Snake River, water the Pacific Northwest. The
Platte runs through
Nebraska
Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Ka ...
and was known for being a mile (2 km) wide but only a half-inch (1 cm) deep. The
Rio Grande
The Rio Grande ( or ) in the United States or the Río Bravo (del Norte) in Mexico (), also known as Tó Ba'áadi in Navajo language, Navajo, is one of the principal rivers (along with the Colorado River) in the Southwestern United States a ...
forms the border between
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
and
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
before turning due north and splitting
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
in half.
According to the
United States Coast Guard
The United States Coast Guard (USCG) is the maritime security, search and rescue, and Admiralty law, law enforcement military branch, service branch of the armed forces of the United States. It is one of the country's eight Uniformed services ...
, "The Western Rivers System consists of the
Mississippi
Mississippi ( ) is a U.S. state, state in the Southeastern United States, Southeastern and Deep South regions of the United States. It borders Tennessee to the north, Alabama to the east, the Gulf of Mexico to the south, Louisiana to the s ...
,
Ohio
Ohio ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the ...
,
Missouri
Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...
,
Illinois
Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...
,
Tennessee
Tennessee (, ), officially the State of Tennessee, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Kentucky to the north, Virginia to the northeast, North Carolina t ...
,
Cumberland,
Arkansas
Arkansas ( ) is a landlocked state in the West South Central region of the Southern United States. It borders Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, Texas to the southwest, and Oklahoma ...
, and
White Rivers and their tributaries, and certain other rivers that flow towards the
Gulf of Mexico
The Gulf of Mexico () is an oceanic basin and a marginal sea of the Atlantic Ocean, mostly surrounded by the North American continent. It is bounded on the northeast, north, and northwest by the Gulf Coast of the United States; on the southw ...
." The Ohio River portion of the system includes parts of several Atlantic coastal states, from Georgia to New York.
Climate and agriculture
Most of the public land held by the
U.S. National Forest Service and Bureau of Land Management is in the Western states. Public lands account for 25 to 75 percent of the total land area in these states.
The climate of the West is
semi-arid, yet parts of the region get high amounts of rain or snow. Other parts are true desert which receive less than of rain per year. The climate is increasingly unstable, and subject to periods of severe drought.
The seasonal temperatures vary greatly throughout the West. Low elevations on the
West Coast have warm summers and mild winters with little to no snow. The
desert southwest has very hot summers and mild winters. While the mountains in the southwest receive generally large amounts of snow. The
Inland Northwest has a
continental climate
Continental climates often have a significant annual variation in temperature (warm to hot summers and cold winters). They tend to occur in central and eastern parts of the three northern-tier continents (North America, Europe, and Asia), typi ...
of warm to hot summers and cold to bitterly cold winters.
Annual rainfall is greater in the eastern portions, gradually tapering off until reaching the Pacific Coast where it increases again. In fact, the greatest annual rainfall in the United States falls in the coastal regions of the
Pacific Northwest
The Pacific Northwest (PNW; ) is a geographic region in Western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common ...
. Drought is much more common in the West than the rest of the United States. The driest place recorded in the U.S. is
Death Valley
Death Valley is a desert valley in Eastern California, in the northern Mojave Desert, bordering the Great Basin Desert. It is thought to be the Highest temperature recorded on Earth, hottest place on Earth during summer.
Death Valley's Badwat ...
, California. In Western states, drought is closely associated with fire risk, and there have been a number of notable wildfires causing extensive property damage and wildlife
habitat destruction. The Western United States is predicted to experience drought-like conditions for much of the 21st century.
Violent thunderstorms occur east of the
Rockies.
Tornado
A tornado is a violently rotating column of air that is in contact with the surface of Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, although the ...
es occur every spring on the southern plains, with the most common and most destructive centered on
Tornado Alley, which covers eastern portions of the West, (
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
to
North Dakota
North Dakota ( ) is a U.S. state in the Upper Midwest, named after the indigenous Dakota people, Dakota and Sioux peoples. It is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north and by the U.S. states of Minneso ...
), and all states in between and to the east.
Agriculture varies depending on rainfall, irrigation, soil, elevation, and temperature extremes. The arid regions generally support only livestock grazing, chiefly beef cattle. The ''
wheat belt'' extends from
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
through
The Dakotas, producing most of the wheat and soybeans in the U.S. and exporting more to the rest of the world. Irrigation in the
Southwest
The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A '' compass rose'' is primarily composed of four cardinal directions—north, east, south, and west— ...
allows the growth of great quantities of fruits, nuts, and vegetables as well as grain, hay, and flowers.
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
is a major cattle and sheep raising area, as well as the nation's largest producer of cotton.
Washington is famous for its apples, and
Idaho
Idaho ( ) is a landlocked U.S. state, state in the Pacific Northwest and Mountain states, Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington (state), ...
for its potatoes.
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
and
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
are major producers of
citrus
''Citrus'' is a genus of flowering trees and shrubs in the family Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, mandarins, lemons, grapefruits, pomelos, and limes.
''Citrus'' is nativ ...
crops, however, declining supplies of water, as well as urban sprawl have contributed to a sharp decline in citrus production in Arizona. Many varieties of
chile peppers are grown in the valleys of
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
.
Starting in 1902, Congress passed a series of acts authorizing the establishment of the
United States Bureau of Reclamation to oversee water development projects in seventeen western states.
During the first half of the 20th century, dams and irrigation projects provided water for rapid agricultural growth throughout the West and brought prosperity for several states, where agriculture had previously only been subsistence level. Following
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, the West's cities experienced an economic and population boom. The population growth, mostly in the
Southwest
The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A '' compass rose'' is primarily composed of four cardinal directions—north, east, south, and west— ...
states of
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
,
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
,
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
,
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
, and
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
, has strained water and power resources, with water diverted from agricultural uses to major population centers, such as the
Las Vegas Valley
The Las Vegas Valley is a major metropolitan area in the Southern Nevada, southern part of the U.S. state of Nevada, and the second largest in the Southwestern United States. The state's largest urban agglomeration, the Las Vegas Metropolitan St ...
and
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
.
Geology
Plains make up much of the eastern portion of the West, underlain with sedimentary rock from the Upper Paleozoic, Mesozoic, and Cenozoic eras. The
Rocky Mountains
The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...
expose igneous and metamorphic rock both from the Precambrian and from the Phanerozoic eon. The Inter-mountain States and
Pacific Northwest
The Pacific Northwest (PNW; ) is a geographic region in Western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common ...
have huge expanses of volcanic rock from the Cenozoic era. Salt pan (geology), Salt flats and salt lakes reveal a time when the great inland seas covered much of what is now the West.
The Pacific states are the most geologically active areas in the United States. Earthquakes cause damage every few to several years in
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
. While the Pacific states are the most volcanically active areas, extinct volcanoes and lava flows are found throughout most of the West.
Wildlife
History

The Western United States has been populated by
Native Americans since at least 11,000 years ago, when the first Paleo-Indians arrived. Pre-Columbian trade routes to kingdoms and empires such as the Mound Builders existed in places such as Yellowstone National Park since around 1000 AD. Major settlement of the western territories developed rapidly in the 1840s, largely through the Oregon Trail and the California Gold Rush of 1849.
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
experienced such a rapid growth in a few short months that it was admitted to statehood in 1850 without the normal transitory phase of becoming an official territory.
One of the largest migrations in American history occurred in the 1840s as the List of denominations in the Latter Day Saint movement, Latter Day Saints left the Midwestern United States, Midwest to build a theocracy in
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
.
Both Omaha, Nebraska and St. Louis, St. Louis, Missouri laid claim to the title, "Gateway to the West" during this period. Omaha, Nebraska, Omaha, home to the Union Pacific Railroad and the Mormon Trail, made its fortunes on outfitting settlers; St. Louis built itself upon the vast fur trade in the West before its settlement.
The 1850s were marked by political battles over the expansion of slavery into the western territories, Origins of the American Civil War (2/4)#The question of slavery in the West, issues leading to the Civil War.
Between 1863 and 1869, North America's first transcontinental railroad was constructed to connect the eastern US with the West Coast of the United States, Pacific coast. The resulting railroad connection revolutionized the settlement and economy of the American West by making the transportation of passengers and freight quicker, safer, and cheaper.
The history of the American West in the late 19th and early 20th centuries has acquired a cultural mythos in the literature and cinema of the United States. The image of the cowboy, the Homestead Act, homesteader, and Manifest destiny, westward expansion took real events and transmuted them into a myth of the west which has shaped much of American popular culture since the late 19th century.
Writers as diverse as Bret Harte and Zane Grey celebrated or derided cowboy culture, while artists such as Frederic Remington created Western American Art, Western art as a method of recording the expansion into the west. The Cinema of the United States, American cinema, in particular, created the genre of the Western (genre), Western movie, which, in many cases, use the West as a metaphor for the virtue of self-reliance and an American ethos. The contrast between the romanticism of culture about the West and the actuality of the history of the westward expansion has been a theme of late 20th and early 21st century scholarship about the West. Western lifestyle, Cowboy culture has become embedded in the American experience as a common cultural touchstone, and modern forms as diverse as country and western music have celebrated the sense of isolation and independence of spirit inspired by the frontiersmen on "virgin land".
20th century
The advent of the history of the automobile, automobile enabled the average American to tour the West. Western businessmen promoted U.S. Route 66, Route 66 as a means to bring tourism and industry to the West. In the 1950s, representatives from all the western states built the National Cowboy & Western Heritage Museum, Cowboy Hall of Fame and Western Heritage Center to showcase western culture and greet travelers from the Eastern United States, East. During the latter half of the 20th century, several transcontinental interstate highways crossed the West bringing more trade and tourists from the East. Oil boom towns in
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
and Oklahoma rivaled the old mining camps for their rawness and wealth. The Dust Bowl forced children of the original homesteaders even further west.
The movies became America's chief entertainment source featuring western fiction, later the community of Hollywood, Los Angeles, Hollywood in
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
became the headquarters of the mass media such as radio and television production.
History of California 1900–present, California has emerged as the most populous state and one of the top 10 economies in the world. Massive late 19th–20th century population and settlement booms created two megalopolis areas of the Greater Los Angeles/Southern California and the San Francisco Bay Area/Northern California regions, one of the nation's largest metropolitan areas and in the top 25 largest urban areas in the world. Five more metropolitan areas of
San Bernardino-Riverside, California, Riverside,
San Diego
San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
,
Denver
Denver ( ) is a List of municipalities in Colorado#Consolidated city and county, consolidated city and county, the List of capitals in the United States, capital and List of municipalities in Colorado, most populous city of the U.S. state of ...
,
Phoenix, and
Seattle
Seattle ( ) is the most populous city in the U.S. state of Washington and in the Pacific Northwest region of North America. With a population of 780,995 in 2024, it is the 18th-most populous city in the United States. The city is the cou ...
have over a million residents, while the three fastest growing metro areas were the Salt Lake City metropolitan area, the Las Vegas Valley, Las Vegas metropolitan area; and the Portland metropolitan area.
Since the mid-1970s, historians of the West have emphasized the
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
years as a major watershed, as a region experienced enormous social and economic change, and became the pacesetter for sociocultural evolution, societal evolution. The population soared, especially in metropolitan areas, as a result of massive expansion of the manufacture of airplanes, ships and munitions and of military and Naval training facilities. California upgraded universities to world-class status, intensified scientific research, and expanded infrastructure. After the war millions more migrated using the GI Bill to buy suburban homes, many of them recalling rewarding wartime experience in military training facilities. The region had always been more democratic with greater racial equality, racial and gender equality, and continued as a national pacesetter in modernization. New problems emerged, especially environmental issues where westerners took the lead in areas such as the allocation of scarce water resources as well as dealing with smog and air pollution. More recently historians have looked at nuances, pointing out that some of the trends began before 1941.
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
has the largest
Mexican population outside of
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
, while
San Francisco
San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
has the largest
Chinese community in
North America
North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
and also has a large LGBT community, and Oakland, California has a large percentage of residents being
African-American, as well as Long Beach, California which also has a significant black community. The state of
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
has a Mormons, Mormon majority (estimated at 62.4% in 2004), while some cities like Albuquerque, New Mexico; Billings, Montana; Spokane, Washington; and Tucson, Arizona are located near Indian reservations. In remote areas there are settlements of Alaskan Natives and Native Hawaiians.
Culture

Historically, the traditional culture of the Western United States has been defined by the Western lifestyle, cowboys, American pioneer, pioneers, and
Native Americans who first inhabited the American frontier, Wild West.
The sparse geography of the western deserts (
Mojave Desert
The Mojave Desert (; ; ) is a desert in the rain shadow of the southern Sierra Nevada mountains and Transverse Ranges in the Southwestern United States. Named for the Indigenous peoples of the Americas, indigenous Mohave people, it is located pr ...
, Great Basin Desert) and isolated small towns, combined with the broad freeways (U.S. Route 66) and long railroads (First transcontinental railroad), have contributed to the popular image of the west as a desolate, open space full of unending roads.
Facing both the Pacific Ocean and the Mexico, Mexican border, the West has been shaped by a variety of ethnic groups.
Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...
is the only state in the union in which Asian Americans outnumber White Americans, white American residents. People from many countries in Asia settled in
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
and other coastal states in several waves of immigration since the 19th century, contributing to the Gold rush, the building of the transcontinental railroad, agriculture, and more recently, high technology.
The border states—
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
,
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
,
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
, and
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
—and other southwestern states such as
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
,
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
, and
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
all have large Hispanic populations, and the many Spanish language, Spanish place names attest to their history as former Spanish and Mexican territories. Mexican Americans, Mexican-Americans have also had a growing population in Northwestern states of
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
and
Washington, as well as the southern states of
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
and Oklahoma.

In the West Coast of the United States, Pacific States, the wide areas filled with small towns, farms, and forests are supplemented by a few big port cities which have evolved into world centers for the media and technology industries. Now the second largest city in the nation,
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
is best known as the home of the Cinema of the United States, Hollywood film industry; the area around
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
also was a major center for the aerospace industry by
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, though Boeing, located in Washington (state), Washington state would lead the aerospace industry. Fueled by the growth of
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
, as well as the San Francisco Bay area, including Silicon Valley, the center of America's high tech industry,
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
has become the most populous of all the 50 states.
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
and
Washington have also seen rapid growth with the rise of Boeing and Microsoft along with agriculture and resource based industries.
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
—the northernmost state in the Union—is a vast land of few people, many of them native, and of great stretches of wilderness, protected in national parks and wildlife refuges. Hawaii's location makes it a major gateway between the United States and Asia, as well as a center for tourism.
The
Mountain States subregion includes
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
,
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
,
Idaho
Idaho ( ) is a landlocked U.S. state, state in the Pacific Northwest and Mountain states, Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington (state), ...
,
Montana
Montana ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the south, an ...
,
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
,
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
,
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
, and
Wyoming
Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...
. The mountain states have relatively low population densities, and developed as ranching and mining areas that only recently became urbanized. Most of them have highly individualistic cultures, and have worked to balance the interests of urban development, recreation, and the environment.
Culturally distinctive points of the mountain states include the large Mormons, Mormon population in the Mormon Corridor, including southeastern
Idaho
Idaho ( ) is a landlocked U.S. state, state in the Pacific Northwest and Mountain states, Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington (state), ...
,
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
, Northern
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
, and
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
; the extravagant casino resort towns of Las Vegas Valley, Las Vegas and
Reno,
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
; and the numerous
American Indian tribal reservations.
Sports
Professional sports leagues such as the National Football League (NFL), Major League Baseball (MLB), National Basketball Association (NBA), Women's National Basketball Association (WNBA), National Hockey League (NHL), Major League Soccer (MLS), and National Women's Soccer League (NWSL), have team franchises in following cities/metropolitan areas of the region:
*
Denver
Denver ( ) is a List of municipalities in Colorado#Consolidated city and county, consolidated city and county, the List of capitals in the United States, capital and List of municipalities in Colorado, most populous city of the U.S. state of ...
: Colorado Avalanche, Avalanche (NHL), Denver Broncos, Broncos (NFL), Denver Nuggets, Nuggets (NBA), Colorado Rapids, Rapids (MLS), Colorado Rockies, Rockies (MLB)
*
Phoenix metropolitan area: Arizona Cardinals, Cardinals (NFL), Arizona Diamondbacks, Diamondbacks (MLB), Phoenix Mercury, Mercury (WNBA), Phoenix Suns, Suns (NBA)
*
Las Vegas
Las Vegas, colloquially referred to as Vegas, is the most populous city in the U.S. state of Nevada and the county seat of Clark County. The Las Vegas Valley metropolitan area is the largest within the greater Mojave Desert, and second-l ...
: Las Vegas Aces, Aces (WNBA), Vegas Golden Knights, Golden Knights (NHL), Las Vegas Raiders, Raiders (NFL)
*
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
metropolitan area: Angel City FC, Angel City (NWSL), Los Angeles Angels, Angels (MLB), Los Angeles Chargers, Chargers (NFL), Los Angeles Clippers, Clippers (NBA), Los Angeles Dodgers, Dodgers (MLB), Anaheim Ducks, Ducks (NHL) Los Angeles Football Club, Los Angeles FC or the Black and Gold Falcons (MLS), LA Galaxy, Galaxy (MLS), Los Angeles Kings, Kings (NHL), Los Angeles Lakers, Lakers (NBA), Los Angeles Rams, Rams (NFL), Los Angeles Sparks, Sparks (WNBA)
*
Portland: Portland Trail Blazers, Trail Blazers (NBA), Portland Thorns FC, Thorns (NWSL), Portland Timbers, Timbers (MLS)
* Sacramento: Sacramento Kings, Kings (NBA)
*
Salt Lake City
Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, the most populous county in the state. The city is the core of the Salt Lake Ci ...
: Utah Jazz, Jazz (NBA), Utah Royals, Royals (NWSL), Real Salt Lake, Real (MLS), Utah Hockey Club, Utah HC (NHL)
*
San Diego
San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
: San Diego Padres, Padres (MLB), San Diego Football Club, San Diego FC (MLS), San Diego Wave FC, Wave (NWSL)
* San Francisco Bay Area: San Francisco 49ers, 49ers (NFL), Bay Football Club, Bay (NWSL), San Jose Earthquakes, Earthquakes (MLS), San Francisco Giants, Giants (MLB), San Jose Sharks, Sharks (NHL), Golden State Valkyries, Valkyries (WNBA), Golden State Warriors, Warriors (NBA)
*
Seattle
Seattle ( ) is the most populous city in the U.S. state of Washington and in the Pacific Northwest region of North America. With a population of 780,995 in 2024, it is the 18th-most populous city in the United States. The city is the cou ...
: Seattle Kraken, Kraken (NHL), Seattle Mariners, Mariners (MLB), Seattle Reign FC, Reign (NWSL), Seattle Seahawks, Seahawks (NFL), Seattle Sounders FC, Sounders (MLS), Seattle Storm, Storm (WNBA)
* West Sacramento, California, West Sacramento: Athletics (baseball), Athletics (MLB) (the team will relocate to Las Vegas in 2027)
Major metropolitan areas
These are the largest Metropolitan Statistical Areas (MSA) with a population above 500,000 in the 13 Western states. Population figures are as of April 1, 2020, as enumerated by the
United States Census Bureau
The United States Census Bureau, officially the Bureau of the Census, is a principal agency of the Federal statistical system, U.S. federal statistical system, responsible for producing data about the American people and American economy, econ ...
:
Other population centers
* The MSA of El Paso, Texas, El Paso, although belonging to
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
, considered part of the
Southern United States
The Southern United States (sometimes Dixie, also referred to as the Southern States, the American South, the Southland, Dixieland, or simply the South) is List of regions of the United States, census regions defined by the United States Cens ...
, it is sometimes also considered part of the Western United States. Its enumerated population in April 2020 was 868,859.
* The largest MSA in
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
is
Anchorage; it has an enumerated population of 398,328, as of April 2020.
* In the outlying areas of the Western United States, the largest population centers are Tafuna in
American Samoa
American Samoa is an Territories of the United States, unincorporated and unorganized territory of the United States located in the Polynesia region of the Pacific Ocean, South Pacific Ocean. Centered on , it is southeast of the island count ...
; Dededo, Guam, Dededo in
Guam
Guam ( ; ) is an island that is an Territories of the United States, organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. Guam's capital is Hagåtña, Guam, Hagåtña, and the most ...
;
and Saipan in the
Northern Mariana Islands
The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands (CNMI), is an Territories of the United States, unincorporated territory and Commonwealth (U.S. insular area), commonwealth of the United States consistin ...
.
Politics

The region's distance from historical centers of power in the East, and the celebrated "frontier spirit" of its settlers offer two clichés for explaining the region's independent, heterogeneous politics. Historically, the West was the first region to see widespread Women's suffrage in the United States, women's suffrage, with women casting votes in
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
and
Wyoming
Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...
as early as 1870, five decades before the Nineteenth Amendment to the United States Constitution, 19th Amendment was ratified by the nation.
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
birthed both the Right to property, property rights and conservation movements, and spawned such phenomena as the California Proposition 13 (1978), Taxpayer Revolt and the Berkeley Free Speech Movement. It has also produced three presidents: Herbert Hoover, Richard Nixon, and Ronald Reagan.
The prevalence of Libertarianism, libertarian political attitudes is widespread. For example, the majority of Western states have legalized medicinal marijuana (all but
Idaho
Idaho ( ) is a landlocked U.S. state, state in the Pacific Northwest and Mountain states, Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington (state), ...
and
Wyoming
Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...
) and some forms of gambling (except
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
);
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
,
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
,
Washington, and
Montana
Montana ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the south, an ...
have legalized Assisted suicide, physician-assisted suicide; most rural counties in
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
allow licensed brothels, and voters in
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
,
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
,
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
,
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
,
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
, and
Washington have legalized recreational use of marijuana.
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
,
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
,
Washington,
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
,
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
,
Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...
and
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
lean toward the Democratic Party (United States), Democratic Party. In recent times, as seen in the 2020 United States presidential election and 2022 Arizona gubernatorial election,
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
is also beginning to lean towards the Democratic Party as well.
San Francisco
San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
's two main political parties are the Green Party and the Democratic Party (United States), Democratic Party. One of the longest-serving Democratic congressional leaders is from the region: former Speaker of the United States House of Representatives Nancy Pelosi of
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
.
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
and most
Mountain states are more Republican Party (United States), Republican, with
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
,
Idaho
Idaho ( ) is a landlocked U.S. state, state in the Pacific Northwest and Mountain states, Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington (state), ...
,
Montana
Montana ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the south, an ...
,
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
, and
Wyoming
Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...
being Republican strongholds. The state of
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
has been won by the Republican presidential candidate in every election except three times since 1948, but in 2020 Arizona voted Democratic. Also, in 2018 and 2020, the GOP lost both U.S. Senate seats in Arizona to the Democrats. The states of
Idaho
Idaho ( ) is a landlocked U.S. state, state in the Pacific Northwest and Mountain states, Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington (state), ...
,
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
, and
Wyoming
Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...
have been won by every Republican presidential nominee since 1964.
The state of
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
is considered a political bellwether, having correctly voted for every president except twice (in 1976 and 2016) since 1912.
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
too is considered a bellwether, having voted for the popular vote winner in every presidential election since statehood, except in 1976.
As the fastest-growing demographic group, after Asian people, Asians, Hispanic and Latino Americans, Latinos are hotly contested by both parties. Immigration is an important political issue for this group. Backlash against undocumented immigrants led to the passage of California Proposition 187 in 1994, a ballot initiative which would have denied many public services to them. Association of this proposal with California Republicans, especially incumbent governor Pete Wilson, drove many Hispanic voters to the Democrats.
The following table shows the breakdown of party affiliation of governors, attorneys general, state legislative houses, and U.S. congressional delegation for the Western states, .
The following table shows the breakdown of party affiliation of governors, attorneys general, state legislative houses, and U.S. congressional delegation for the outlying areas of the Western United States, .
Health
The Western United States consistently ranks well in health measures. The rate of potentially preventable hospitalizations in the Western United States was consistently lower than other regions from 2005 to 2011. While the proportion of maternal or neonatal hospital stays was higher in the Western United States relative to other regions, the proportion of medical stays in hospitals was lower than in other regions in 2012.
See also
* List of online encyclopedias of U.S. states
* American frontier
* Autry Museum of the American West
* Environmental history of the United States
* High Country News
* History of the Jews in the American West
* History of the west coast of North America
* Intermountain West
* Professional sports in the Western United States
* Railroad land grants in the United States
* Sunset (magazine), Sunset magazine
* Territories of the United States on stamps
* Western Canada
* West Coast of the United States
* Wildfires in the United States#Western U.S. wildfire trends, Western U.S. wildfire trends
References
Notes
Further reading
Surveys
* Deutsch, Sarah. ''Making a Modern U.S. West: The Contested Terrain of a Region and Its Borders 1898–1940.'' Lincoln: University of Nebraska Press, 2022.
* Doig, Ivan. ''This House of Sky: Landscapes of a Western Mind.'' New York. 1978.
* Findlay, John M. ''The Mobilized American West, 1940–2000.'' Lincoln, NE: University of Nebraska Press, 2023. Comprehensive histor
online review of this book* Malone, Michael P., and Richard W. Etulain. ''The American West: A Twentieth-Century History.'' Lincoln: University of Nebraska Press, 1989.
* Milner II, Clyde A; O'Connor, Carol A.; Sandweiss, Martha A. ''The Oxford History of the American West.'' Oxford University Press, 1994.
* Morgan, Neil Bowen. ''Westward Tilt: The American West Today.'' New York: Random House, 1963.
* Pomeroy, Earl. ''The American Far West in the Twentieth Century.'' New Haven, CT: Yale University Press, 2009.
* Schwantes, Carlos Arnaldo. ''Going Places: Transportation Redefines the Twentieth-Century West.'' Bloomington: Indiana University Press, 2003.
* Stegner, Wallace. ''The Sound of Mountain Water: The Changing American West.'' Garden City, NY: Doubleday, 1969.
* White, Richard. ''A New History of the American West: 'It's Your Misfortune and None of My Own. Norman: University of Oklahoma Press, 1991.
* Whitehead, John. ''Completing the Union: Alaska, Hawai'i, and the Battle for Statehood.'' Albuquerque: University of New Mexico Press, 2004
* Wiley, Peter, and Robert Gottlieb. ''Empires in the Sun: The Rise of the New American West.'' New York. 1982.
*
Economy
* Graham, Don. ''Kings of Texas: The 150-Year Saga of an American Ranching Empire.'' Hoboken, NJ: John Wiley and Sons, 2003.
* Nash, Gerald D. ''A.P. Giannini and the Bank of America.'' Norman: University of Oklahoma Press, 1992.
* Nash, Gerald D. ''The Federal Landscape: An Economic History of the Twentieth-Century West.'' Tucson: University of Arizona Press. 1999.
* O'Mara, Margaret. ''The Code: Silicon Valley and the Remaking of America.'' New York: Penguin Press, 2019.
* Robbins, William G. ''Colony and Empire: The Capitalist Transformation of the American West.'' Lawrence: University Press of Kansas, 1994.
Environment
* Abbey, Edward. ''Desert Solitaire : A Season in the Wilderness.'' New York: McGraw-Hill, 1968.
* Castaneda, Christopher J., and Lee M. A. Simpson, eds. ''River City and Valley Life: An Environmental History of the Sacramento region.'' Pittsburgh, PA: University of Pittsburgh Press, 2013. In California
online* Cawley, R. McGreggor. ''Federal Land, Western Anger: The Sagebrush Rebellion and Environmental Politics.'' Lawrence: University Press of Kansas, 1993. On conservatives.
* Cunfer, Geoff, and Bill Waiser, eds. ''Bison and People on the North American Great Plains: A Deep Environmental History.'' College Station, TX: Texas A&M University Press, 2016
online
* Dant, Sara. ''Losing Eden: An Environmental History of the American West.'' Lincoln, NE: University of Nebraska Press, 2023
online also se
online book review* DeBuys, William. ''Enchantment and Exploitation: The Life and Hard Times of a New Mexico Mountain Range.'' Albuquerque: University of New Mexico Press, 1985.
* DeVoto, Bernard. "The West: A Plundered Province." ''Harper's Magazine'' 169 (1934): 355–364.
* Dobie, J. Frank. ''The Longhorns.'' Boston: Little, Brown, 1941.
* Dobie, J. Frank. ''The Mustangs.'' Boston: Little, Brown, 1952.
* Dobie. J. Frank. ''The Voice of the Coyote.'' Boston: Little, Brown, 1949.
* Flores, Dan. ''The Natural West: Environmental History in the Great Plains and Rocky Mountains.'' Norman, OK: University of Oklahoma Press, 2003
online
* Fradkin, Philip. ''A River No More: The Colorado River and the West,'' 2nd ed. Berkeley: University of California Press, 1996.
* Frehner, Brian, and Kathleen A. Brosnan, eds. ''The Greater Plains: Rethinking a Region's Environmental Histories.'' Lincoln, NE: University of Nebraska Press, 2021
online
* Harvey, Mark W. T. "Echo Park, Glen Canyon, and the Postwar Wilderness Movement." ''Pacific Historical Review'' (1991): 43–67
onlineColorado River region
* Hollon, W. Eugene. ''The Great American Desert, Then and Now.'' Lincoln: University of Nebraska Press, 1975.
* Huggard, Christopher, and Arthur R. Gómez. ''Forests under Fire: A Century of Ecosystem Mismanagement in the Southwest.'' Tucson: University of Arizona Press, 2001.
* Hundley Jr., Norris. ''Water and the West: The Colorado River Compact and the Politics of Water in the American West.'' 2nd ed. University of California Press, 2009.
* Krutch, Joseph Wood. ''The Voice of the Desert: A Naturalist's Interpretation.'' New York: William Sloane Associates, 1954.
* Lamm, Richard D., and Michael McCarthy. ''The Angry West: A Vulnerable Land and Its Future.'' Boston, MA: Houghton Mifflin Harcourt, 1982.
* Logan, Michael F. ''Desert Cities: The Environmental History of Phoenix and Tucson.'' Pittsburgh, PA; University of Pittsburgh Press, 2006.
* Needham, Andrew. ''Power Lines: Phoenix and the Making of the Modern Southwest.'' Princeton, NJ: University of Princeton Press, 2014.
* Pisani, Donald J. ''Water, Land, and Law in the West: The Limits of Public Policy, 1850-1920.'' Lawrence: University Press of Kansas, 1996.
* Pyne, Stephen J. ''Fire: A Brief History.'' Seattle: University of Washington Press, 2001.
* Pyne, Stephen J. ''Fire on the Rim: A Firefighter's Season at the Grand Canyon.'' New York: Grove Press, 1989.
* Reisner, Marc. ''Cadillac Desert: The American West and its Disappearing Water.'' Penguin, 1993. Says the villain was the federal Bureau of Reclamation se
also se
online copy
* Rowley, William D. ''Reclaiming the Arid West: The Career of Francis G. Newlands.'' Bloomington: Indiana University Press, 1996.
* Rundell Jr., Walter. ''Oil in West Texas and New Mexico: A Pictorial History of the Permian Basin.'' College Station: Texas A & M University Press, 1982.
* Stegner, Wallace. ''The American West As Living Space.'' Ann Arbor: University of Michigan Press, 1987.
* Sturgeon, Stephen Craig. ''The Politics of Western Water: The Congressional Career of Wayne Aspinall.'' Tucson, AZ: University of Arizona Press, 2002.
* Vogel, David. ''California Greenin': How the Golden State became an Environmental Leader'' Princeton, NJ: Princeton University Press, 2019).
* White, Richard. ''The Organic Machine: The Remaking of the Columbia River.'' New York: Hill and Wang, 1995.
* Wild, Peter. ''Pioneer Conservationists of Western America'' (1979
online* Worster, Donald. ''Under Western Skies: Nature and History in the American West'' Oxford University Press, 1992
online* Worster, Donald. ''Dust Bowl: The Southern Plains in the 1930s.'' New York: Oxford University Press, 1979.
* Worster, Donald. ''Rivers of Empire: Water, Aridity, and the Growth of the American West.'' New York: Pantheon Books, 1987.
Historiography
* Billington, Ray Allen. ''America's Frontier Heritage.'' Albuquerque, University of New Mexico Press, 1984.
* Etulain, Richard W., "Clio's Disciples on the Rio Grande: Western History at the University of New Mexico", ''New Mexico Historical Review'' 87 (Summer 2012): 277–298.
* Etulain, Richard W. ''Telling Western Stories: From Buffalo Bill to Larry McMurtry.'' Albuquerque: University of New Mexico Press, 1999.
* Etulain, Richard W. ''The American West and Its Interpreters.'' Albuquerque: University of New Mexico Press, 2023.
* Etulain, Richard W. ''Writing Western History: Essays On Major Western Historians'' Reno, NV: University of Nevada Press, 2002.
* Faragher, John Mack, ed. ''Rereading Frederick Jackson Turner: The Significance of the Frontier in American History and Other Essays.'' New York: Holt, 1994.
* Frantz, Joe B. ''Aspects of the American West: Three Essays.'' College Station: Texas A&M University Press, 1976.
* Gressley, Gene. "Whither Western American History? Speculations on a Direction," ''Pacific Historical Review'' 53, no. 4 (1984): 483–501.
* Malone, Michael P. "Beyond the Last Frontier: Toward a New Approach to Western American History." ''The Western Historical Quarterly'' 20, no. 4 (1989): 409–27.
* Malone, Michael P., ed. ''Historians and the American West.'' Lincoln: University of Nebraska Press, 1983.
* Nash, Gerald D. ''Creating the West: Historical Interpretations, 1890–1990.'' Albuquerque: University of New Mexico Press, 1991.
* Nash, Gerald D., and Richard W. Etulain. ''The Twentieth-Century West: Historical Interpretations.'' Albuquerque: University of New Mexico Press, 1989.
* Norris Jr., Hundley, and John A. Schutz, ed. ''The American West: Frontier and Region--Interpretations by John Walton Caughey.'' Los Angeles, CA: Ward Ritchie Press, 1969.
* Pomeroy, Earl. "Toward a Reorientation of Western History: Continuity and Environment." ''The Mississippi Valley Historical Review'' 41, no. 4 (1955): 579–600.
* Prince, Gregory A. ''Leonard Arrington and the Writing of Mormon History.'' Salt Lake City: University of Utah Press, 2016.
* Rensink, Brenden W., ed. ''The North American West in the Twenty-First Century.'' Lincoln: University of Nebraska Press, 2022.
* Ridge, Martin. "The Life of an Idea: The Significance of Frederick Jackson Turner’s Frontier Thesis." ''Montana: The Magazine of Western History'' 41, no. 1 (1991): 2–13.
* Sonnichsen, C. L. ''The Ambidextrous Historian: Historical Writers and Writing in the American West.'' Norman: University of Oklahoma Press, 1981.
* Stegner, Wallace and Richard W. Etulain. ''Stegner: Conversations on History and Literature.'' Salt Lake City: University of Utah Press, 1983.
Labor
* Andrews, Thomas G. ''Killing for Coal: America’s Deadliest Labor War.'' Cambridge, MA: Harvard University Press, 2008.
* Brykit, James W. ''Forging the Copper Collar: Arizona's Labor-Management War of 1901-1921.'' Tucson, University of Arizona Press, 1982.
* Lukas, J. Anthony. ''Big Trouble: A Murder in a Small Western Town Sets Off a Struggle for the Soul of America.'' New York: Simon and Schuster, 1997.
* Schwantes, Carlos Arnaldo. ''Radical Heritage: Labor, Socialism, and Reform in Washington and British Columbia, 1885-1917.'' Seattle: University of Washington Press, 1979.
Military history
* Amundson, Michael A. ''Yellowcake Towns : Uranium Mining Communities in the American West.'' Boulder: University Press of Colorado, 2002.
* Bolton, Roger E. ''Defense Purchases and Regional Growth.'' Washington, D.C. 1966.
* Brilliant, Mark and David M. Kennedy, eds. ''World War II and the West It Wrought.'' Redwood City, CA: Stanford University Press. 2020
excerpt* Clayton, James L. "Impact of the Cold War on the Economies of California and Utah." ''Pacific Historical Review,'' 36 (1967): 449–473.
* Fernlund, Kevin J., ed. ''The Cold War American West, 1945–1989.'' Albuquerque: University of New Mexico Press, 1998.
* Findlay, John M. and Hevley, Bruce W. ''Atomic Frontier Days : Hanford and the American West.'' Center for the Study of the Pacific Northwest in Association with Seattle: University of Washington Press, 2011.
* Heefner, Gretchen. ''The Missile Next Door: The Minuteman in the American Heartland.'' Cambridge, MA: Harvard University Press, 2012.
* Hevly, Bruce W. and John M. Findlay, ed. ''The Atomic West.'' Seattle: University of Washington Press, 1998.
* Hull, McAllister, with Amy Bianco. ''Rider of the Pale Horse: A Memoir of Los Alamos and Beyond.'' Albuquerque: University of New Mexico Press, 2005.
* Hunner, Jon. ''J. Robert Oppenheimer, the Cold War, and the Atomic West.'' Norman: University of Oklahoma Press, 2009.
* Larson, T.A. ''Wyoming's War Years, 1941–1945.'' Laramie: University of Wyoming, 1954.
* Lotchin, Roger. ''Japanese American Relocation in World War II: A Reconsideration.'' Cambridge, UK: Cambridge University Press, 2018.
* Lotchin, Roger W. "The Metropolitan-Military Complex in Comparative Perspective: San Francisco, Los Angeles, and San Diego, 1919–1941." ''Journal of the West,'' 20 (July 1979): 19–30.
* Martini, Edwin A. ''Proving Grounds: Militarized Landscapes, Weapons Testing, and the Environmental Impact of U.S. Bases.'' Seattle: University of Washington Press, 2015.
* Nash, Gerald D. ''The American West Transformed: The Impact of the Second World War.'' Bloomington: Indiana University Press, 1985.
* Nash, Gerald D. ''World War II and the West: Reshaping the Economy.'' Lincoln: University of Nebraska Press. 1990.
* Rosier, Paul C. "'They Are Ancestral Homelands': Race, Place, and Politics in Cold War Native America, 1945-1961." ''The Journal of American History'' 92, no. 4 (2006): 1300–26.
* Szasz, Ferenc Morton. ''The Day the Sun Rose Twice: The Story of the Trinity Site Nuclear Explosion, July 16, 1945.'' Albuquerque: University of New Mexico Press, 1984.
Mythic West
* Athearn, Robert G.''The Mythic West in Twentieth-Century America.'' Lawrence: University Press of Kansas, 1986.
* Etulain, Richard W. ''Re-Imagining the Modern American West: A Century of Fiction, History, and Art.'' Tucson: University of Arizona Press. 1996.
* Gibson, Arrell M. ''The Santa Fe and Taos Colonies: Age of the Muses, 1900–1942.'' Norman: University of New Mexico Press, 1988.
* Lehan, Richard. ''Quest West: American Intellectual and Cultural Transformations.'' Baton Rouge: Louisiana State University Press, 2014.
* Savage Jr., William W. ''The Cowboy Hero: His Image in American History and Culture.'' Norman: University of Oklahoma Press, 1979.
Native Americans
* Brown, Dee. ''Bury My Heart at Wounded Knee: An Indian History of the American West.'' New York: Holt, Rinehart and Winston, 1970.
* Debo, Angie. ''And Still the Waters Run: The Betrayal of the Five Civilized Tribes.'' Princeton, NJ: University of Princeton Press, 1968.
* Deloria Jr. Vine, and Clifford M. Lytle. ''American Indians, American Justice.'' Austin: University of Texas Press, 1983.
* Fixico, Donald L. ''Termination and Relocation: Federal Indian Policy, 1945–1960.'' Albuquerque: University of New Mexico Press, 1986.
* Iverson, Peter. ''When Indians Became Cowboys: Native Peoples and Cattle Ranching in the American West.'' Norman: University of Oklahoma Press, 1994.
* Parman, Donald Lee. ''Indians and the American West in the Twentieth Century.'' Bloomington: Indiana University Press, 1994.
Politics
* Danbom, David B. ''Bridging the Distance: Common Issues of the Rural West.'' Salt Lake City: University of Utah Press, 2015.
*
* Fernlund, Kevin J. ''Lyndon B. Johnson and Modern America.'' Norman: University of Oklahoma Press, 2009.
* Iverson, Peter. ''Barry Goldwater: Native Arizonan.'' Norman: University of Oklahoma Press, 1997.
* Lowitt, Richard. ''The New Deal and the West.'' Bloomington: Indiana University Press, 198
online* Rothman, Hal K. ''LBJ's Texas White House: 'Our Heart's Home. College Station: Texas A&M University Press, 2001.
* Smith, Thomas G. ''Stewart L. Udall: Steward of the Land.'' Albuquerque: University of New Mexico Press, 2017.
* Stratton, David H. ''Tempest Over Teapot Dome: The Story of Albert B. Fall.'' Norman: University of Oklahoma Press, 1998.
* Young, Nancy Beck. ''Two Suns of the Southwest: Lyndon Johnson, Barry Goldwater, and the 1964 Battle between Liberalism and Conservatism.'' Lawrence: University Press of Kansas, 2019.
Reference
*
* Lamar, Howard. ''The New Encyclopedia of the American West.'' New Haven, CT: Yale University Press, 1998.
* Newark, Peter. ''The Illustrated Encyclopedia of the Old West.'' Reprint, New York: Gallery Books, 1985.
*
* Witschi, Nicolas S., ed. ''A Companion to the Literature and Culture of the American West.'' Hoboken, NJ: Wiley, 2011.
Religion
* Avella, Steven M. "Catholicism in the Twentieth-Century American West: The Next Frontier." ''The Catholic Historical Review'' 97, no. 2 (2011): 219–49.
* Stegner, Wallace. ''Mormon Country.'' New York: Duell, Sloan & Pearce, 1942.
Tourism
* Barber, Alicia. ''Reno’s Big Gamble: Image and Reputation in the Biggest Little City.'' Lawrence: University Press of Kansas. 2008.
* Cottam, Erica. ''Hubbell Trading Post: Trade, Tourism, and the Navajo Southwest.'' Norman: University of Oklahoma Press, 2015.
* McCormack, Kara L. ''Imagining Tombstone: The Town Too Tough to Die.'' Lawrence, University Press of Kansas, 2016.
* Pomeroy, Earl. ''In Search of the Golden West: The Tourist in Western America.'' New York: Knopf, 1957.
* Rothman, Hal K. ''Devil's Bargains: Tourism and the Twentieth-Century American West.'' Lawrence: University of Kansas Press, 1998.
* Rugh, Susan Sessions. "Branding Utah: Industrial Tourism in the Postwar American West." ''Western Historical Quarterly'' 37, no. 4 (2006): 445–472.
* Stratton, David H. ''Tucumcari Tonite!: A Story of Railroads, Route 66, and the Waning of a Western Town.'' Albuquerque: University of New Mexico Press, 2022.
* Wrobel, David. ''Promised Lands: Promotion, Memory, and the Creation of the American West.'' Lawrence: University Press of Kansas, 2002.
Urban West
*
* Cline, Platt. ''Mountain Town: Flagstaff's First Century.'' Flagstaff, AZ: Northland Publishing, 1994.
* Davis, Mike. ''City of Quartz: Excavating the Future of Los Angeles.'' New York: Verso, 1990.
* Findlay, John M. ''Magic Lands: Western Cityscapes and American Culture After 1940.'' Berkeley: University of California Press, 1992.
* Gómez, Arthur R. ''Quest for the Golden Circle: The Four Corners and the Metropolitan West, 1945-1970.'' Albuquerque: University of New Mexico, 1994.
* Leonard, Stephen J., and Thomas J. Noel. ''Denver: Mining Camp to Metropolis.'' Boulder: University Press of Colorado, 1990.
* Luckingham, Bradford. ''The Urban Southwest: A Profile History of Albuquerque, El Paso, Phoenix, and Tucson.'' El Paso: Texas Western Press, 1982.
* Nash, Gerald D. ''The American West in the Twentieth Century – A Short History of an Urban Oasis.'' Hoboken, NJ: Prentice Hall, 1973.
* Rothman, Hal. ''Neon Metropolis: How Las Vegas Started the Twenty-First Century.'' Oxfordshire, UK: Routledge, 2003.
* Sonnichsen, C.L. ''Tucson: The Life and Times of an American City.'' Norman: University of Oklahoma Press, 1982.
* Stratten, David H., ed. ''Spokane and the Inland Empire: An Interior Pacific Northwest Anthology.'' Rev. ed. Pullman: Washington State University Press, 2007.
* Wilson, Chris. ''The Myth of Santa Fe: Creating a Modern Regional Tradition.'' Albuquerque: University of New Mexico Press, 1997.
External links
Photo collection at ''Library of Congress''
''US National Archives & Records Administration''
Institute for the Study of the American West Center of the American WestHistory: American West Vlib.us
Collection: "Manifest Destiny and the American West"from the University of Michigan Museum of Art
{{Coord, 40, -113, region:US_dim:1000km, display=title
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