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The California Geological Survey has had many names over its history. The original Geological Survey of California was replaced in April 1880 by the new California State Mining Bureau. This was renamed the Division of Mines in 1927. In 1962 the division's name was expanded to be California Division of Mines and Geology, a name that lasted until ...
The Surface Mining and Reclamation Act of 1975 (SMARA) gave the Department of Conservation responsibilities related to reclamation of mined lands. Initially these responsibilities were allocated to the Division of Mines and Geology, working in concert with the State Mining and Geology Board and local governments.
Established. 1999. Governing body. California Department of Parks and Recreation. The California State Mining and Mineral Museum is a museum of the state park system of California, United States. The museum exhibits and interprets the state's mineral resources and mining heritage. It is located in Mariposa, a city in central California, on the ...
Empire Mine State Historic Park. / 39.20361°N 121.04278°W / 39.20361; -121.04278. Empire Mine State Historic Park is a state-protected mine and park in the Sierra Nevada mountains in Grass Valley, California, U.S. The Empire Mine is on the National Register of Historic Places, a federal Historic District, and a California Historical ...
The Mountain Pass Rare Earth Mine and Processing Facility, owned by MP Materials, is an open-pit mine of rare-earth elements on the south flank of the Clark Mountain Range in California, 53 miles (85 km) southwest of Las Vegas, Nevada. In 2020 the mine supplied 15.8% of the world's rare-earth production. It is the only rare-earth mining and ...
Elsinore Fault Zone. California Coast, Los Angeles to San Diego Bay. Elsinore Fault Zone is labeled in the center running along the Santa Ana Mountains. NASA photo, 2008. The Elsinore Fault Zone is a large right-lateral strike-slip geological fault structure in Southern California. The fault is part of the trilateral split of the San Andreas ...
Josiah Dwight Whitney (November 23, 1819 – August 18, 1896) was an American geologist, professor of geology at Harvard University (from 1865), and chief of the California Geological Survey (1860–1874). Through his travels and studies in the principal mining regions of the United States, Whitney became the foremost authority of his day on ...
Porter (1932) [4] Wikimedia Commons has media related to Sisquoc Formation. The Sisquoc Formation is a sedimentary geologic unit widespread in Southern California, both on the coast and in mountains near the coast. Overlying the Monterey Formation, it is of upper Miocene and lower Pliocene age (from about 4 to 6 million years old). [5]