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Red Cones
The Red Cones are a pair of cinder cones near Devils Postpile National Monument, in eastern Madera County, California, Madera County of central California. They are within the eastern Sierra Nevada (U.S.), Sierra Nevada and Inyo National Forest. Volcanic geology The Red Cones last erupted approximately 5000 years ago, with both cinder eruption (forming the cones), and a basalt flow from the southern cone, which flowed approximately towards the upper Middle Fork of the San Joaquin River. The Red Cones are at the southern end of the Mono-Inyo Craters, the magma for the Red Cones shares its origin with the other Mono-Inyo craters. See also *Long Valley caldera *Panum Crater References {{reflist Cinder cones of the United States Volcanoes of Madera County, California Inyo National Forest Landforms of the Sierra Nevada (United States) Volcanoes of California ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madera County, California
Madera County (), officially the County of Madera, is a county at the geographic center of the U.S. state of California. As of the 2020 census, the population was 156,255. The county seat is Madera. Madera County comprises the Madera, CA Metropolitan Statistical Area, which is included in the Fresno-Madera, CA Combined Statistical Area. It is located in the eastern San Joaquin Valley and the central Sierra Nevada. The southeasternmost part of Yosemite National Park is located in the county's northeast. History and etymology Madera County was formed in 1893 from Fresno County during a special election held in Fresno on May 16, 1893. Citizens residing in the area that was to become Madera County voted 1,179 to 358 for separation from Fresno County and the establishment of Madera County. Madera is the Spanish term for wood. The county derives its name from the town of Madera, named when the California Lumber Company built a log flume to carry lumber to the Central Pacific R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Joaquin River
The San Joaquin River (; es, Río San Joaquín) is the longest river of Central California. The long river starts in the high Sierra Nevada, and flows through the rich agricultural region of the northern San Joaquin Valley before reaching Suisun Bay, San Francisco Bay, and the Pacific Ocean. An important source of irrigation water as well as a wildlife corridor, the San Joaquin is among the most heavily dammed and diverted of California's rivers. People have inhabited the San Joaquin Valley for more than 8,000 years, and it was long one of the major population centers of pre-Columbian California. Starting in the late 18th century, successive waves of explorers then settlers, mainly Spanish and American, emigrated to the San Joaquin basin. When Spain colonized the area, they sent soldiers from Mexico, who were usually of mixed native Mexican and Spanish birth, led by Spanish officers. Franciscan missionaries from Spain came with the expeditions to evangelize the natives by teac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanoes Of Madera County, California
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
