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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.
According to a 1904 dictionary of U.S. statutory language, "a mining district is a section of country usually designated by name and described or understood as being confined in certain boundaries, in which gold or silver or both are found in paying quantities, and which is worked therefor, under rules and regulations prescribed by the miners."
Mining in the United States has been active since the beginning of colonial times, but became a major industry in the 19th century with a number of new mineral discoveries causing a series of mining rushes. In 2015, the value of coal, metals, and industrial minerals mined in the United States was US$109.6 billion. 158,000 workers were directly ...
Argonaut Mining Company: 1893–1942 registered as California Historical Landmark #786. Golden Fleece Tunnel: Westville: Golden Fleece Mining & Milling Co. Iron Mountain Mine: Redding: Kennedy Mine: Jackson: 1886–1942 South of Sutter Gold Mine Locarno Mine
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 August 2006, when the state legislature renamed the division the ...
The Argus Cogeneration Plant of Searles Valley Minerals. The Argus Cogeneration Plant is a coal-fired power station located adjacent to the mineral processing plant in Trona, California. The power station has nameplate capacity of 63 MW and produced 296 GWh of electricity in 2018. [11] It is the last coal-fired power station still operating in ...
The resulting document was the Toronto Declaration, presented as a plan for improving mining and metals’ contribution to sustainable development. The treaty stated that the International Council on Mining and Metals should take over responsibilities from the Mining, Minerals and Sustainable Development Project.
The tram was built for the Saline Valley Salt Company (SVSC) by the Trenton Iron Company, but the costs of its construction and operation were ruinously expensive for the SVSC. The salt mining operation and tram were leased in 1915 to the Owens Valley Salt Company until it went bankrupt in 1918. In 1920, the tram was taken over by the Trenton ...