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Telegraph Pass (Arizona)
Telegraph Pass is a highway pass on Interstate 8 through the Gila Mountains in Yuma County, Arizona, about 19 miles (30 km) east of Yuma in the northwest Sonoran Desert. The east bound lanes of I-8 cross under the westbound freeway, briefly traveling to the left before Telegraph Pass before reverting back. In 1967, the "Telegraph Pass" freeway section of Interstate 8 (Miles 11–23) was opened. Name Telegraph Pass was named after the telegraph line that ran from San Diego, California, to Maricopa Wells, Arizona, which was extended by the US Army to Prescott, Arizona, back in 1873. There is a popular hiking trail nearby that is called the Telegraph Pass Trailhead. Geography Telegraph Pass has one of the oldest geological sections of the Interstate Highway System in the United States. The pass goes through via a two-tiered highway section at the north end of the Gila Mountain range showing various strata. The highway road cuts expose some of the oldest metamorphic rocks in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuma County, Arizona
Yuma County is a county in the southwestern corner of the U.S. state of Arizona. As of the 2020 census, its population was 203,881. The county seat is Yuma. Yuma County includes the Yuma, Arizona Metropolitan Statistical Area. The county borders three states: Sonora, Mexico, to the south, and two other states to the west, across the Colorado River: California of the United States and the Mexican state of Baja California. Being 63.8% Hispanic in 2020, Yuma is Arizona's largest majority-Hispanic county. History Long settled by Native Americans of indigenous cultures for thousands of years, this area was controlled by the Spanish Empire in the colonial era. In the 19th century, it was part of independent Mexico before the Mexican–American War and Gadsden Purchase. Yuma County was one of four original Arizona counties created by the 1st Arizona Territorial Legislature. The county territory was defined as being west of longitude 113° 20' and south of the Bill Williams River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Mountains (Yuma County)
The Gila Mountains of Yuma County are a 26-mile (42 km) long mountain range in southwestern Arizona in the northwest Sonoran Desert. The Gila Mountains of Yuma County are a northwest-southeast trending mountain system. The fault-blocked mountain range is attached on the south to the Tinajas Altas Mountains which continue southeast into Sonora, Mexico for another 30 miles. The northwest end of the mountains border the southeast Laguna Mountains. The Gila River flows through the Gila Valley between the Gilas and the Lagunas prior to its confluence with the Colorado. The Gila Mountains are southeast of the confluence of the Colorado and Gila rivers in the Lower Colorado River Valley. The Gila River flows northwest, north around the mountain's north end, then west six miles to the Colorado. On the northeast side of the Gila Range, the low-elevation basin, Dome Valley is created between the Muggins Mountains and the Muggins Mountains Wilderness to the northeast. The blo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstate 8
Interstate 8 (I-8) is an Interstate Highway in the southwestern United States. It runs from the southern edge of Mission Bay at Sunset Cliffs Boulevard in San Diego, California, almost at the Pacific Ocean, to the junction with I-10, just southeast of Casa Grande, Arizona. In California, the freeway travels through the San Diego metropolitan area as the Ocean Beach Freeway and the Mission Valley Freeway before traversing the Cuyamaca Mountains and providing access through the Imperial Valley, including the city of El Centro. Crossing the Colorado River into Arizona, I-8 continues through the city of Yuma across the Sonoran Desert to Casa Grande, in between the cities of Phoenix and Tucson. The first route over the Cuyamaca Mountains was dedicated in 1912, and a plank road served as the first road across the Imperial Valley to Yuma; east of there, the Gila Trail continued east to Gila Bend, Arizona, Gila Bend. These were later replaced by U.S. Route 80 (US ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuma, Arizona
Yuma ( coc, Yuum) is a city in and the county seat of Yuma County, Arizona, United States. The city's population was 93,064 at the 2010 census, up from the 2000 census population of 77,515. Yuma is the principal city of the Yuma, Arizona, Metropolitan Statistical Area, which consists of Yuma County. According to the United States Census Bureau, the 2020 estimated population of the Yuma MSA is 203,247. According to Guinness World Records, Yuma is the "Sunniest City on Earth," promising "sunshine and warm weather at least 91% of the year." Anywhere from 70,000 to over 85,000 out-of-state visitors make Yuma their winter residence. Yuma's weather also makes it an agricultural powerhouse, growing over 175 types of crops, the largest of which is lettuce. Yuma County provides 90% of all leafy vegetables grown from November to March in the United States. Yuma is also known for its large military population due to several military bases, including the Marine Corps Air Station. Yum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonoran Desert
The Sonoran Desert ( es, Desierto de Sonora) is a desert in North America and ecoregion that covers the northwestern Mexican states of Sonora, Baja California, and Baja California Sur, as well as part of the southwestern United States (in Arizona and California). It is the hottest desert in both Mexico and the United States. It has an area of . In phytogeography, the Sonoran Desert is within the Sonoran Floristic province of the Madrean Region of southwestern North America, part of the Holarctic realm of the northern Western Hemisphere. The desert contains a variety of unique endemic plants and animals, notably, the saguaro (''Carnegiea gigantea'') and organ pipe cactus (''Stenocereus thurberi''). The Sonoran Desert is clearly distinct from nearby deserts (e.g., the Great Basin, Mojave, and Chihuahuan deserts) because it provides subtropical warmth in winter and two seasons of rainfall (in contrast, for example, to the Mojave's dry summers and cold winters). This creates an ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Diego, California
San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles. Historically home to the Kumeyaay people, San Diego is frequently referred to as the "Birthplace of California", as it was the first site visited and settled by Europeans on what is now the U.S. west coast. Upon landing in San Diego Bay in 1542, Juan Rodríguez Cabrillo claimed the area for Spain, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maricopa Wells, Arizona
Maricopa Wells is a former place ( locale) situated in Pinal County, Arizona. It has an estimated elevation of above sea level. Historically, it was an oasis around a series of watering holes in the Sierra Estrella, eight miles north of present-day Maricopa, Arizona, and about a mile west of Pima Butte. It developed as a trading center and stopping place for travelers in the mid to late 19th century. History Maricopa Wells was a watering place named by travelers on the Southern Emigrant Trail who used it as a stopping place on the trail. They could rest and feed and water their animals. They traded with the nearby Maricopa and Pima natives for crops produced in their fields, which they irrigated by the Gila River. A settlement developed here when it was the base for the large stage station for the San Antonio-San Diego Mail Line and Butterfield Overland Mail, and later stage companies. At one time this was the primary military telegraph post for all of Arizona Territory. It w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prescott, Arizona
Prescott ( ) is a city in Yavapai County, Arizona, United States. According to the 2020 Census, the city's population was 45,827. The city is the county seat of Yavapai County. In 1864, Prescott was designated as the capital of the Arizona Territory, replacing the temporary capital of Fort Whipple. The Territorial Capital was moved to Tucson in 1867. Prescott again became the Territorial Capital in 1877, until Phoenix became the capital in 1889. Prescott has a rich history as a frontier gold and silver mining town. Mining and settlers brought frequent conflict with native American tribes in the area, including the Yavapai and Apache. Prescott was the home to Fort Whipple from its inception, which acted as a base for campaigns against natives. Prescott was a stereotypical "wild west" town during the latter half of the 19th century; famous residents included Doc Holliday and Virgil Earp of the gunfight at the O.K. Corral. The makeshift wooden town burned to the ground sever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of Ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstate Highway System
The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, is a network of controlled-access highways that forms part of the National Highway System in the United States. The system extends throughout the contiguous United States and has routes in Hawaii, Alaska, and Puerto Rico. The U.S. federal government first funded roadways through the Federal Aid Road Act of 1916, and began an effort to construct a national road grid with the passage of the Federal Aid Highway Act of 1921. In 1926, the United States Numbered Highway System was established, creating the first national road numbering system for cross-country travel. The roads were still state-funded and maintained, however, and there was little in the way of national standards for road design. U.S. Highways could be anything from a two-lane country road to a major multi-lane freeway. After Dwight D. Eisenhower became president in 1953, his administration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphic Rocks
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock (protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, causing profound physical or chemical changes. During this process, the rock remains mostly in the solid state, but gradually recrystallizes to a new texture or mineral composition. The protolith may be an igneous, sedimentary, or existing metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by their protolith, their chemical and mineral makeup, and their texture. They may be formed simply by being deeply buried beneath the Earth's surface, where they are subject to high temperatures and the great pressure of the rock layers above. They can also form from tectonic processes such as continental collisions, which cause horizontal pressure, friction, and distort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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