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Gold mining began at the site in 1936, but the rare earth deposits were not discovered until 1949 when prospectors in search of uranium noticed anomalously high radioactivity. [9] [3] Molybdenum Corporation of America bought most [10] of the mining claims, and began small-scale production in 1952. Mountain Pass mine, mill, shop & offices in 2010
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
Collecting drainage in the Iron Mountain Mine. The mine is located at in the Klamath Mountains of Shasta County, about 9 miles northwest of ReddingThe mine area is drained by several creeks which ultimately enter the Spring Creek Reservoir, formed by the Spring Creek Dam, and finally the Keswick Reservoir formed by a dam across the Sacramento River.
Mines in California (3 C, 4 P) Mining communities in California (1 C, 38 P) ... Philadelphia Silver and Copper Mining Company; R. Rand Mountains; Randsburg Railway;
Searles Valley Minerals plant in Trona, California. Searles Valley Minerals Inc. is a raw materials mining and production company with corporate offices in Overland Park, Kansas. It is owned by the Indian company Nirma. [1] [2] It has major operations in the Searles Valley centered in Trona, California where it is the town's largest employer.
In California, the Black Diamond Coal Mining Company employed 315 miners in 1870. [23] Mine employees included "100 coal-cutters and miners, 20 car-men, 11 car-drivers, 3 underground foremen, 4 engineers, 8 bunker men, and the rest are carpenters, watchmen, blacksmiths, firemen, door-tenders, furnace men, and slope men."
Pages in category "Underground mines in the United States" The following 76 pages are in this category, out of 76 total. This list may not reflect recent changes .
Falconbridge Nickel Mines Limited was a Canadian mining company with operations in 18 countries, involved in the exploration, mining, processing, and marketing of metal and mineral products, including nickel, copper, cobalt, and platinum. In 1982 the company was renamed Falconbridge Limited.