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Chocolate Mountains
The Chocolate Mountains of California are located in Imperial County, California, Imperial and Riverside County, California, Riverside counties in the Colorado Desert of Southern California. The mountains stretch more than 60 miles (100 km) in a northwest to southeast direction, and are located east of the Salton Sea and south and west of the Chuckwalla Mountains and the Colorado River. To the northwest lie the Orocopia Mountains. Geography The Chocolate Mountains form the northeast boundary of the Salton Trough extending as a narrow range some southeast from the Orocopia Mountains to the Colorado River valley. The mountains are located about west of the Chocolate Mountains (Arizona), Chocolate Mountains of Arizona, but the two ranges are not connected. The range reaches an elevation of 2,475 feet (754 m) at Mount Barrow, and serves as a drainage divide for the Salton Sink, Salton Watershed to the west. The mountains receive very little rainfall in a normal year, typical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial County, California
Imperial County is a County (United States), county on the southeast border of the U.S. state of California. As of the 2020 United States Census, 2020 census, the population was 179,702, making it the least populous county in Southern California. The county seat is El Centro, California, El Centro. Imperial is the most recent California county to be established, as it was created in 1907 out of portions of San Diego County. Imperial County is located in the far southeast of California, in the Imperial Valley. It borders San Diego County to the west, Riverside County, California, Riverside County to the north, the U.S. state of Arizona to the east and the Mexico, Mexican state of Baja California to the south. It includes the El Centro Metropolitan Statistical Area and is part of the Southern California San Diego–Imperial (California), border region, the smallest but most economically diverse region in the state. Although this region is a desert, with high temperatures and low ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesozoic
The Mesozoic Era ( ), also called the Age of Reptiles, the Age of Conifers, and colloquially as the Age of the Dinosaurs is the second-to-last era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Period (geology), Periods. It is characterized by the dominance of archosaurian reptiles, like the dinosaurs; an abundance of conifers and ferns; a hot Greenhouse and icehouse earth, greenhouse climate; and the tectonic break-up of Pangaea. The Mesozoic is the middle of the three eras since Cambrian explosion, complex life evolved: the Paleozoic, the Mesozoic, and the Cenozoic. The era began in the wake of the Permian–Triassic extinction event, the largest well-documented mass extinction in Earth's history, and ended with the Cretaceous–Paleogene extinction event, another mass extinction whose victims included the non-avian dinosaurs, Pterosaur, pterosaurs, Mosasaur, mosasaurs, and Plesiosaur, plesiosaurs. The Mesozoic was a time of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picacho Peak Wilderness
Picacho Peak Wilderness is a U.S. wilderness area located on nearly of desert land in Imperial County, California, just west of the Arizona state line. The wilderness area is managed by the Bureau of Land Management The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior responsible for administering federal lands. Headquartered in Washington DC, and with oversight over , it governs one eighth of the country's la .... References External links * {{coord, 33, 01, N, 114, 44, W, type:landmark_region:US-CA_dim:10000, display=title Geography of California Protected areas of Imperial County, California ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bureau Of Land Management
The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior responsible for administering federal lands. Headquartered in Washington DC, and with oversight over , it governs one eighth of the country's landmass. President Harry S. Truman created the BLM in 1946 by combining two existing agencies: the General Land Office and the Grazing Service. The agency manages the federal government's nearly of subsurface mineral estate located beneath federal, state and private lands severed from their surface rights by the Homestead Act of 1862. Most BLM public lands are located in these 12 western states: Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming. The mission of the BLM is "to sustain the health, diversity, and productivity of the public lands for the use and enjoyment of present and future generations." Originally BLM holdings were described as "land nobody wanted" because home ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Picacho Wilderness
The Little Picacho Wilderness is a wilderness area under the jurisdiction of the Bureau of Land Management. The wilderness is found in a southeast extension of the Chocolate Mountains adjacent to the Colorado River, in the southeastern part of California. It should not be confused with the Picacho Peak Wilderness which is located to the northeast. At elevations ranging from , the wilderness is home to the Picacho wild horse, which roams the northwestern part of the wilderness. The wilderness provides habitat for wild burro, desert tortoise, spotted bat and desert bighorn sheep. The Little Picacho Wilderness is one of a number of federally protected areas located north of Yuma, Arizona and south of Blythe, California in the Lower Colorado River Valley. See also * Little Picacho Wilderness flora * Chocolate Mountains The Chocolate Mountains of California are located in Imperial and Riverside counties in the Colorado Desert of Southern California. The mountains stretch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Marine Corps
The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combined arms, implementing its own infantry, artillery, aerial, and special operations forces. The U.S. Marine Corps is one of the eight uniformed services of the United States. The Marine Corps has been part of the U.S. Department of the Navy since 30 June 1834 with its sister service, the United States Navy. The USMC operates installations on land and aboard sea-going amphibious warfare ships around the world. Additionally, several of the Marines' tactical aviation squadrons, primarily Marine Fighter Attack squadrons, are also embedded in Navy carrier air wings and operate from the aircraft carriers. The history of the Marine Corps began when two battalions of Continental Marines were formed on 10 November 1775 in Philadelphia as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chocolate Mountain Aerial Gunnery Range
The Chocolate Mountain Aerial Gunnery Range (CMAGR) is a bombing range operated by the US Marine Corps located in southern California. United States. Range description The range is a Chocolate Mountain Aerial Gunnery Range: California The Western Regional Partnership, Military Asset List 2016, U.S. Marine Corps, dated 2016, last accessed 12 July 2020. open-area, approximately 20 miles wide, east to west, and 50 miles long, northwest to southeast, with a special use airspace of which is used for aerial ing and live fire aerial nery pra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riverside, California
Riverside is a city in and the county seat of Riverside County, California, United States, in the Inland Empire metropolitan area. It is named for its location beside the Santa Ana River. It is the most populous city in the Inland Empire and in Riverside County, and is about southeast of downtown Los Angeles. It is also part of the Greater Los Angeles area. Riverside is the 61st-most-populous city in the United States and 12th-most-populous city in California. As of the 2020 census, it had a population of 314,998. Along with San Bernardino, Riverside is a principal city in the nation's 13th-largest Metropolitan Statistical Area (MSA); the Riverside-San Bernardino-Ontario MSA (pop. 4,599,839) ranks in population just below San Francisco (4,749,008) and above Detroit (4,392,041). Riverside was founded in the early 1870s. It is the birthplace of the California citrus industry and home of the Mission Inn, the nation's largest Mission Revival Style building. It is also home ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bradshaw Trail
Today's Bradshaw Trail is a historic overland stage route in the western Colorado Desert of Southern California. It is a remnant of the much longer Bradshaw Road, also known as the Road to La Paz, or Gold Road, established in 1862 by William D. Bradshaw. It was the first overland route to connect the gold fields near La Paz in the U.S. New Mexico Territory, later the Arizona Territory, to Southern California's more populated west coast. Once in La Paz, additional roads provided access to the mining districts of the central New Mexico/Arizona Territory, near Wickenburg and Prescott. The route ran from San Bernardino, California, through the San Gorgonio Pass and Coachella Valley, past the Salton Sink (now filled by the Salton Sea), and east to the Colorado River where Bradshaw's Ferry was available to transport travelers across the river. The gold fields were then some 5 miles northeast of current-day Ehrenberg, Arizona. The trail that remains today is a graded dirt road, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesquite Mine
The Mesquite Mine, operated by Equinox Gold, is located near Glamis, Imperial County, California. It is one of the largest gold mines in the United States. History Felizario Parra discovered gold in April 1876, worked placers until 1880, and sold out for $3000.00. Dry washing of low grade ores continued intermittently for 100 years, along with many exploratory shafts. From 1957 to 1980, Dick and Anna Singer mined, recorded earlier efforts, made studies, and sold their findings to Gold Fields Mining Corporation. After investing 70 million in exploration, development and construction, Gold Fields began full-scale production in March 1986. Production reached 207,897 ounces of gold in 1992. It was expected that this rate of production would be maintained through 1999 when the mine would be subsequently exhausted. Gold Fields and Santa Fe Pacific Gold Corporation, which had given steady employment to approximately 300 persons, contributed heavily to public and private needs and operat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental ( native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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