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Volcan Mountains
The Volcan Mountains are a mountain range of the Peninsular Ranges system, located in the East County, San Diego, East County region of San Diego County, California. Geography The Volcans are a northwest–southeast range with an approximate length of and width of . They define the western side of San Felipe Valley, California, San Felipe Valley, with the San Felipe Hills (San Diego County), San Felipe Hills defining the east side. Julian, California, Julian and the historic Coleman City, Coleman gold mining district lie on the southern margin of the range.''Santa Ysabel, California,'' 15 Minute Topographic Quadrangle, USGS, 1960 Lake Henshaw is just to the northwest. See also * Volcanic Hills (California) — ''also in San Diego County''. * References Mountain ranges of San Diego County, California Peninsular Ranges East County (San Diego County) {{SanDiegoCountyCA-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Diego County, California
San Diego County (), officially the County of San Diego, is a county (United States), county in the southwest corner of the U.S. state of California, north to its Mexico-United States border, border with Mexico. As of the 2020 United States Census, 2020 census, the population was 3,298,634; it is the second-most populous county in California and the County statistics of the United States, fifth-most populous in the United States. Its county seat is San Diego, the List of largest cities in California by population, second-most populous city in California and the List of United States cities by population, eighth-most populous in the United States. It is the southwesternmost county in the 48 contiguous United States, and is a List of municipalities and counties on the Mexico–United States border#California, border county. It is home to 18 Indian reservation, Indian reservations, the most of any county in the United States. There are 16 :Military facilities in San Diego County, Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The agency also makes maps of planets and moons, based on data from List of NASA missions, U.S. space probes. The sole scientific agency of the U.S. Department of the Interior, USGS is a fact-finding research organization with no regulatory responsibility. It is headquartered in Reston, Virginia, with major offices near Lakewood, Colorado; at the Denver Federal Center; and in NASA Research Park in California. In 2009, it employed about 8,670 people. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 international border with the Mexico, Mexican state of Baja California to the south. With almost 40million residents across an area of , it is the List of states and territories of the United States by population, largest state by population and List of U.S. states and territories by area, third-largest by area. Prior to European colonization of the Americas, European colonization, California was one of the most culturally and linguistically diverse areas in pre-Columbian North America. European exploration in the 16th and 17th centuries led to the colonization by the Spanish Empire. The area became a part of Mexico in 1821, following Mexican War of Independence, its successful war for independence, but Mexican Cession, was ceded to the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peninsular Ranges
The Peninsular Ranges (also called the Lower California province) are a group of mountain ranges that stretch from Southern California to the southern tip of the Baja California peninsula; they are part of the North American Pacific Coast Ranges, which run along the Pacific coast from Alaska to Mexico. Elevations range from . Geography The Peninsular Ranges include the Santa Ana Mountains, the Temescal Mountains, other mountains and ranges of the Perris Block, the San Jacinto Mountains, the Laguna Mountains of southern California continuing from north to south with the Sierra de Juárez, the Sierra de San Pedro Mártir, the Sierra de San Borja, the Sierra de San Francisco, the Sierra de la Giganta, and the Sierra de la Laguna in Baja California. Palomar Mountain, home to Palomar Observatory, is in the Peninsular Ranges in San Diego County, as are the San Ysidro Mountains and Viejas Mountain. The Peninsular Ranges run predominantly north-south, unlike the Transverse R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East County, San Diego
East County is a region of San Diego County, California, east of San Diego. Geography East County does not have an official geographic definition, although East County boundaries are unofficially drawn by the County of San Diego for its second district. It commonly includes El Cajon, La Mesa, Lemon Grove, Poway, and Santee, as well as suburban and rural unincorporated communities such as Lakeside, Spring Valley, Jamul, and Alpine. Many sources also include vast swaths of the backcountry of San Diego County also known as the Mountain Empire, including communities along Interstate 8 such as Pine Valley and Descanso, and communities along the rural section of California State Route 94 such as Potrero, Boulevard, and Jacumba. Other sources consider communities within the entire eastern two-thirds of the county to be East County, thereby encompassing places like Ramona, Julian, and Borrego Springs, The Ramona area—Ramona, San Diego Country Estates and Barona Mesa� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Felipe Valley, California
San Felipe Valley is an inland valley of the Peninsular Ranges, located in eastern San Diego County, California. California Department of Fish and Wildlife: San Felipe Valley Wildlife Area Land Management Plan dated October 2007 . accessed 12.12.2015. Most of the valley is protected within the San Felipe Valley Wildlife Area. Geography The San Felipe Hills define the eastern side of the San Felipe Valley, and the define the west side.[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Felipe Hills (San Diego County)
The San Felipe Hills are a low mountain range in eastern San Diego County, southern California. Geography The range defines the eastern side of San Felipe Valley, with the Volcan Mountains defining the west side. They run southwest of Ranchita, and northeast of Julian and the Iipay Nation of Santa Ysabel Reservation. Ecology The southern section is within Anza-Borrego Desert State Park and supports Colorado Desert habitats. The northern section supports chaparral Chaparral ( ) is a shrubland plant plant community, community found primarily in California, southern Oregon, and northern Baja California. It is shaped by a Mediterranean climate (mild wet winters and hot dry summers) and infrequent, high-intens ... habitats. See also * References Mountain ranges of Southern California Mountain ranges of San Diego County, California Mountain ranges of the Colorado Desert Anza-Borrego Desert State Park {{SanDiegoCountyCA-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julian, California
Julian is a census-designated place (CDP) in San Diego County, California. As of the 2020 census, the population was 1,768, up from 1,502 at the time of the 2010 census. Julian is an official California Historical Landmark (No. 412). The Julian townsite and surrounding area is defined by the San Diego County Zoning Ordinance Section 5749 as the Julian Historic District. This designation requires that development adhere to certain guidelines that are administered by the Architectural Review Board of the Julian Historic District, which is appointed by the San Diego County Board of Supervisors. Julian was named an International Dark Sky Community by the International Dark-Sky Association in May 2021. It was the 30th such designation and the second in California. The town is known for its apple pie and its annual Julian Apple Days Festival, which began in 1949. History 19th century: Initial European settlement and the gold rush The first European settlers were "Cockney Bill" W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coleman City
Coleman City, also called Emily City, is a ghost town in San Diego County, California. It lies at an elevation of 3601 feet. It is located on State Highway 79 where it crosses Coleman Creek, about four miles west of Julian. History Coleman City was founded in the early months of 1870 by the first placer miners who rushed to Coleman Creek, following the news of the discovery of gold there by A. E. Coleman who first discovered gold there in January 1870. Coleman, with earlier experience in the gold camps in Northern California, subsequently formed the Coleman Mining District and was its recorder. He also established the Emily City mining town site. This mining camp, later renamed Coleman City in his honor, served the placer gold miners along Coleman Creek in the Coleman Mining District. The San Diego Union reported on February 17, 1870 that the camp had 75 miners inhabiting it. On March 17, following the discovery of the Washington Mine, it reported Coleman City consisted o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Henshaw
Lake Henshaw is a reservoir in San Diego County, California, at the southeast base of Palomar Mountain, approximately northeast of San Diego and southeast of Los Angeles. The lake covers approximately and holds of water when full (lowered in 1978 from its original capacity of out of earthquake concerns), in addition to groundwater stored in its local basin. It drains an area of at the source of the San Luis Rey River. The lake was constructed in with the building of Henshaw Dam, an earth dam tall and long. It is owned by the Vista Irrigation District and used primarily for agricultural irrigation. The lake features opportunities for catfish and carp fishing. Boats and cabins are available for rental. It hosts The Carp Throwdown fly fishing tournament organized by the Fly Stop. Climate See also *List of dams and reservoirs in California *List of lakes in California There are more than 3,000 named lakes, reservoirs, and dry lakes in the U.S. state of California. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Hills (California)
The Volcanic Hills are a low mountain range in the Colorado Desert, near the border in southern San Diego County, California San Diego County (), officially the County of San Diego, is a county (United States), county in the southwest corner of the U.S. state of California, north to its Mexico-United States border, border with Mexico. As of the 2020 United States Cen .... References Mountain ranges of the Colorado Desert Mountain ranges of San Diego County, California {{SanDiegoCountyCA-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Ranges Of San Diego County, California
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 than a hill, typically rising at least above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and climate, mountains te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
