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In geomorphology, a butte () is an isolated

hill A hill is a landform that extends above the surrounding terrain. It often has a distinct summit. Terminology The distinction between a hill and a mountain is unclear and largely subjective, but a hill is universally considered to be not a ...

with steep, often vertical sides and a small, relatively flat top; buttes are smaller landforms than

mesa A mesa is an isolated, flat-topped elevation, ridge or hill, which is bounded from all sides by steep escarpments and stands distinctly above a surrounding plain. Mesas characteristically consist of flat-lying soft sedimentary rocks capped by a ...

plateau In geology and physical geography, a plateau (; ; ), 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. Often one or more sides ...

s, and tablelands. The word ''butte'' comes from a French word meaning

knoll In geography, knoll is another term for a knowe or hillock, a small, low, round natural hill or mound. Knoll may also refer to: Places * Knoll Camp, site of an Iron Age hill fort Hampshire, England, United Kingdom * Knoll Lake, Leonard Canyon, A ...

(but of any size); its use is prevalent in the

Western United States The Western United States (also called the American West, the Far West, and the West) is the region comprising the westernmost states of the United States. As American settlement in the U.S. expanded westward, the meaning of the term ''the We ...

, including 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—each sepa ...

where ''mesa'' (

Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...

for "table") is used for the larger landform. Due to their distinctive shapes, buttes are frequently landmarks in

plain In geography, a plain 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 as plateaus or uplands ...

s and mountainous areas. To differentiate the two landforms, geographers use the rule of thumb that a mesa has a top that is wider than its height, while a butte has a top that is narrower than its height.

Formation

Buttes form by

weathering Weathering is the deterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms. Weathering occurs ''in situ'' (on site, with little or no movement) ...

and

erosion Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is dis ...

when hard

caprock Caprock or cap rock is a more resistant rock type overlying a less resistant rock type,Kearey, Philip (2001). ''Dictionary of Geology'', 2nd ed., Penguin Reference, London, New York, etc., p. 41.. . analogous to an upper crust on a cake that is ha ...

overlies a layer of less resistant

rock Rock most often refers to: * Rock (geology), a naturally occurring solid aggregate of minerals or mineraloids * Rock music, a genre of popular music Rock or Rocks may also refer to: Places United Kingdom * Rock, Caerphilly, a location in Wales ...

that is eventually worn away. The harder rock on top of the butte resists erosion. The caprock provides protection for the less resistant rock below from wind abrasion which leaves it standing isolated. As the top is further eroded by abrasion and weathering, the excess material that falls off adds to the

scree Scree is a collection of broken rock fragments at the base of a cliff or other steep rocky mass that has accumulated through periodic rockfall. Landforms associated with these materials are often called talus deposits. Talus deposits typically ...

or talus slope around the base. On a much smaller scale, the same process forms hoodoos.

Notable buttes

The Mitten Buttes of Monument Valley in the

Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

state line are two of the most distinctive and widely recognized buttes. Monument Valley and the Mittens provided backgrounds in the scenes of many western-themed films, including seven movies directed by

John Ford John Martin Feeney (February 1, 1894 – August 31, 1973), known professionally as John Ford, was an American film director and naval officer. He is widely regarded as one of the most important and influential filmmakers of his generation. He ...

. The

Devils Tower Devils Tower (also known as Bear Lodge Butte) is a butte, possibly laccolithic, composed of igneous rock in the Bear Lodge Ranger District of the Black Hills, near Hulett and Sundance in Crook County, northeastern Wyoming, above the Belle Fo ...

in northeastern

Wyoming Wyoming () is a state in the Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the s ...

is a

laccolith A laccolith is a body of intrusive rock with a dome-shaped upper surface and a level base, fed by a conduit from below. A laccolith forms when magma (molten rock) rising through the Earth's crust begins to spread out horizontally, prying apar ...

ic butte composed of

igneous rock Igneous rock (derived from the Latin word ''ignis'' meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma o ...

rather than

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates ...

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

or other

sedimentary rock Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles ...

The term ''butte'' is sometimes applied more broadly to isolated, steep-sided hills with pointed or craggy, rather than flat, tops. Three notable formations that are either named ''butte'' or may be considered buttes even though they do not conform to the formal geographer's rule are

Scotts Bluff Scotts Bluff National Monument is located west of the City of Gering in western Nebraska, United States. This National Park Service site protects over 3,000 acres of historic overland trail remnants, mixed-grass prairie, rugged badlands, toweri ...

Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the sout ...

which is a collection of five bluffs,

Crested Butte Crested Butte is a prominent mountain summit in the Elk Mountains range of the Rocky Mountains of North America. The peak is in Gunnison National Forest, northeast by east ( bearing 59°) of the Town of Crested Butte in Gunnison County, Col ...

, which is a mountain in

Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...

, and Elephant Butte, which is now an island in Elephant Butte Reservoir in

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ke ...

. Among the well-known non-flat-topped buttes in the United States are

Bear Butte Bear Butte is a geological laccolith feature located near Sturgis, South Dakota, United States, that was established as a State Park in 1961. An important landmark and religious site for the Plains Indians tribes long before Europeans reached Sout ...

South Dakota South Dakota (; Sioux: , ) is a U.S. state in the North Central region of the United States. It is also part of the Great Plains. South Dakota is named after the Lakota and Dakota Sioux Native American tribes, who comprise a large porti ...

, Black Butte,

Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. T ...

, and the

Sutter Buttes The Sutter Buttes (Maidu: ''Histum Yani'' or ''Esto Yamani'', Wintun: ''Olonai-Tol'', Nisenan: ''Estom Yanim'') are a small circular complex of eroded volcanic lava domes which rise as buttes above the flat plains of the Sacramento Valley in Su ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

. In many cases, buttes have been given other names that do not use the word ''butte'', for example,

Courthouse Rock Courthouse and Jail Rocks are two rock formations located near Bridgeport in the Nebraska Panhandle. The Oregon-California Trail, the Mormon Trail, the Pony Express Trail and the Sidney-Deadwood Trail all ran near the rocks. The pair of rock f ...

, Nebraska. Also, some large hills that are technically not buttes have names using the word, examples of which are

Kamiak Butte Kamiak Butte County Park is located in Whitman County, Washington between the towns of Palouse and Pullman in Eastern Washington, near the border of Idaho. It is named after Chief Kamiakin of the Yakama tribe. Most of the park's consist of ti ...

, Chelan Butte and

Steptoe Butte Steptoe Butte is a quartzite island jutting out of the silty loess of the Palouse hills in Whitman County, Washington, in the northwest United States. The butte is preserved as Steptoe Butte State Park, a publicly owned recreation area located ...

Washington state Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washington ...

Gallery

File:Butte pdphoto roadtrip 24 bg 021604.jpg, Courthouse Butte near Sedona, Arizona File:Вид на крепость Качахакаберд4.JPG, Qaxaç Qalası or Kachaghakaberd fortress, Khojali District,

Azerbaijan Azerbaijan (, ; az, Azərbaycan ), officially the Republic of Azerbaijan, , also sometimes officially called the Azerbaijan Republic is a transcontinental country located at the boundary of Eastern Europe and Western Asia. It is a part of t ...

File:Pawnee Buttes2010.jpg,

Pawnee Buttes The Pawnee Buttes are two prominent buttes in northeastern Colorado. The west butte is located within the Pawnee National Grassland, while the east butte is on private land in Weld County. Rising approximately above the surrounding plains, the b ...

Pawnee National Grassland Pawnee National Grassland is a United States National Grassland located in northeastern Colorado on the Colorado Eastern Plains. The grassland is located in the South Platte River basin in remote northern and extreme northeastern Weld County be ...

File:Algérie 2009.jpg,

Tamanrasset Province Tamanrasset or Tamanghasset ( ar, ولاية تمنراست ''Wilāya Tamanrāssat'', Berber languages) is the largest province ('' wilaya'') in Algeria. It was named after its province seat, Tamanrasset. The province has two national parks, mor ...

Algeria ) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , relig ...

Footnotes

References

External links