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  • All fields: Mining--Colorado--Boulder County--1900-1920.
(7 results)



Display: 50

    • The Wolf Tongue Mining Co

    • View of a tungsten mine processing facility in Boulder County, Colorado; shows ore reduction sheds, a settling pond, a car, houses, and a sign: "The Wolf Tongue Mining Co." Mountain peaks are in the distance.
    • Mine buildings--Colorado--Boulder County--1900-1920.; Tungsten mines and mining--Colorado--Boulder County--1900-1920.; Boulder County (Colo.)--1900-1920.; Houses--Colorado--Boulder County--1900-1920.; Mining--Colorado--Boulder County--1900-1920.
    • [between 1900 and 1920?]
    • Compressor and motor, Cash Mine

    • Interior view of Cash Mine structure in Boulder County, Colorado; men in caps stand behind hoist and motors.
    • Boulder County (Colo.)--1900-1920.; Cash Mine (Boulder County, Colo.)--1900-1920.; Interiors--Colorado--Boulder County--1900-1920.; Machinery--Colorado--Boulder County--1900-1920.; Miners--Colorado--Boulder County--1900-1920.;...
    • [between 1905 and 1915]
    • Compressor and motor, Cash Mine

    • Interior view of Cash Mine structure in Boulder County, Colorado; a man in overalls and a cap leans on fan belt wheel, motors, and compressor. Embossed on compressor: "Compressor Co. Erie, PA. U.S.A."
    • Boulder County (Colo.)--1900-1920.; Cash Mine (Boulder County, Colo.)--1900-1920.; Interiors--Colorado--Boulder County--1900-1920.; Machinery--Colorado--Boulder County--1900-1920.; Miners--Colorado--Boulder County--1900-1920.;...
    • [between 1905 and 1915]
    • Caribou mine, Caribou, Colorado

    • Two men pose among wooden buildings at the Caribou mine, Caribou, Boulder County, Colorado. Rocks and machine debris are scattered on the ground around them.
    • Boulder County (Colo.)--1900-1920.; Caribou Shaft (Boulder County, Colo.)--1900-1920.; Buildings--Colorado--Boulder County--1900-1920.; Mining--Colorado--Boulder County--1900-1920.
    • [between 1900 and 1920?]
    • Sprague - Osborn Mill

    • View of a (silver or tungsten?) mine processing facility in Boulder County, Colorado; shows ore reduction sheds and a water tower.
    • Mine buildings--Colorado--Boulder County--1900-1920.; Boulder County (Colo.)--1900-1920.; Mining--Colorado--Boulder County--1900-1920.
    • [between 1900 and 1920?]
    • Shaft house and loading chute of Caribou mine

    • The shaft house and loading chute at the Caribou mine stand on a large pile of mine tailings, Boulder County, Colorado.
    • Mine shafts--Colorado--Boulder County--1900-1920.; Boulder County (Colo.)--1900-1920.; Caribou Shaft (Boulder County, Colo.)--1900-1920.; Mining--Colorado--Boulder County--1900-1920.
    • [between 1900 and 1920?]
    • Ward, Colorado

    • Several mines with large piles of tailings stand near the town of Ward in Boulder County, Colorado.
    • Ward (Colo.)--1900-1920.; Mining--Colorado--Boulder County--1900-1920.
    • [between 1900 and 1920?]

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