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  2. Gold Hill (Nevada County, California) - Wikipedia

    en.wikipedia.org/wiki/Gold_Hill_(Nevada_County...

    Gold Hill (Nevada County, California) Gold Hill in Grass Valley, California, was the site of one of the first discoveries of quartz gold [2] in California. While quartz gold was also found in other areas of Nevada County, California during the same time, it is this find near Wolf Creek that led to quartz-mining frenzy and subsequent creation of ...

  3. North Star Mine and Powerhouse - Wikipedia

    en.wikipedia.org/wiki/North_Star_Mine_and_Powerhouse

    The North Star Mine and Powerhouse are located on Lafayette Hill a short distance south of Grass Valley in the U.S. state of California. It was the second largest producer of gold during California's Gold Rush. [1] In 1898, the largest Pelton wheel for its time was built for the mine. [2][3] The North Star Mine Company also owned locations on ...

  4. Hearst, Haggin, Tevis and Co. - Wikipedia

    en.wikipedia.org/wiki/Hearst,_Haggin,_Tevis_and_Co.

    Hearst, Haggin, Tevis and Co., a company started in California in the 1850s and headed by San Francisco lawyer James Ben Ali Haggin with Lloyd Tevis and George Hearst, grew to be the largest private firm of mine -owners in the United States. Hearst himself acquired the reputation of arguably being one of the most expert prospector and judge of ...

  5. Empire Mine State Historic Park - Wikipedia

    en.wikipedia.org/wiki/Empire_Mine_State_Historic...

    December 09, 1977. 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 Landmark. Since 1975 California State Parks has administered and ...

  6. List of quarries in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_quarries_in_the...

    In 1906 the state mineralogist of California reported on 52 granite quarrying areas in 17 counties. [ 2 ] Many quarries were opened temporarily to provide stone for one or a few local or regional construction projects, but could not compete later when railroads allowed for economical transportation of heavy building materials to the area.

  7. Cambria (company) - Wikipedia

    en.wikipedia.org/wiki/Cambria_(company)

    Number of employees. 1,934 (2020 [1]) Website. cambriausa.com. Cambria (keɪm-bri-ə) is a producer of engineered quartz surfaces in the United States. [2] It is located in Le Sueur, Minnesota, with additional facilities throughout the United States, and in Ontario, Canada. [3] Cambria is privately held and owned by the Davis family.

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