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Cerro de la Calavera (also known as Mount Calavera) is an 513 ft (156 m) [1] ancient plug dome volcano that last erupted 22 million years ago during the subduction of the Farallon Plate. [3] [better source needed] It is located within the city of Carlsbad, California in the United States. Cerro de la Calavera is only one of three volcanic plugs ...
Round Top is an extinct volcano located in the Berkeley Hills, just east of Oakland, California, within Contra Costa County. The peak is part of the Sibley Volcanic Regional Preserve, which was originally established in 1936 as Round Top Regional Park. This park was one of the first three parks in the East Bay Regional Parks District.
The magma that fuels the volcanoes in the park is derived from subduction off the coast of Northern California. Cinder Cone and the Fantastic Lava Beds , located about 10 mi (16 km) northeast of Lassen Peak, is a cinder cone volcano and associated lava flow field that last erupted about 1650.
The volcano is credited with the creation of the High Valley through repeated eruptions the last of which is thought to have occurred 8,500–10,000 years ago. The result was an elevated valley at approximately 1,600 ft (490 m) in elevation with distinct ridgelines reaching up to 3,000 ft (910 m). [3]
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The Salton Buttes lie on the southeastern shores of the Salton Sea, with their peaks at an elevation of −40 m (−130 ft), [1] in Imperial County, California. [2] [3] The towns of Niland and Calipatria lie northeast and southeast of the Salton Buttes, respectively, [4] and Palm Springs is 140 kilometers (90 mi) northwest. [5]
Mt. Shasta, California's largest volcano, had many eruptions in prehistoric times but has remained quiet in the modern era. And like the Long Valley Caldera, the magma beneath Lassen Volcanic ...
Volcano (formerly Soldier's Gulch and The Volcano) is a census-designated place [4] in Amador County, California. It lies at an elevation of 2,070 feet (631 m). The population was 115 at the 2010 census. It is located at , just north of Pine Grove.