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  2. Mountain Pass Rare Earth Mine - Wikipedia

    en.wikipedia.org/wiki/Mountain_Pass_rare_earth_mine

    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.

  3. Mesquite Mine - Wikipedia

    en.wikipedia.org/wiki/Mesquite_Mine

    Dry washing of low grade ores continued intermittently for 100 years, along with many exploratory shafts. From 1957 to 1980, Dick and Anna Singer mined, recorded earlier efforts, made studies, and sold their findings to Gold Fields Mining Corporation. After investing 70 million in exploration, development and construction, Gold Fields began ...

  4. List of mines in California - Wikipedia

    en.wikipedia.org/wiki/List_of_mines_in_California

    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

  5. Yuba Goldfields - Wikipedia

    en.wikipedia.org/wiki/Yuba_Goldfields

    Lawsuits by farmers curtailed hydraulic mining in 1883, but the slickens remained behind in the river systems. [5] In 1893, the California Debris Commission began to dredge the Yuba River near Marysville to mitigate the environmental damage from hydraulic mining, and piled the gravel along the river's banks. Later, in 1904, W.B. Hammon ...

  6. California State Mining and Mineral Museum - Wikipedia

    en.wikipedia.org/wiki/California_State_Mining...

    The California State Mining and Mineral Museum exhibits and interprets the state's mineral resources and mining heritage. It is part of the California state park system, and is located near Mariposa, a town in central California, on the premises of the Mariposa County fairgrounds. [1] The museum houses a collection that was created in 1880 ...

  7. Gold in California - Wikipedia

    en.wikipedia.org/wiki/Gold_in_California

    Loss of mercury in the amalgamation process was a source of environmental contamination. [25] Eventually, hard-rock mining wound up becoming the single largest source of gold produced in the Gold Country. [17] [26] The total production of gold in California from then until now is estimated at 118 million ounces (3700 t). [27]

  8. California Gulch - Wikipedia

    en.wikipedia.org/wiki/California_Gulch

    The mining, milling and smelting process that transforms ores into precious metals creates many types of wastes, which contaminated land and waters in and around Leadville. Since 1995, removal and remedial activities have been conducted through federal, state, and PRP actions to consolidate, contain and control more than 350,000 cubic yards of ...

  9. California Geological Survey - Wikipedia

    en.wikipedia.org/wiki/California_Geological_Survey

    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 ...

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