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  • All fields: Mining--Colorado--San Miguel County--1880-1900.
(15 results)



Display: 50

    • Keystone Placer Mine. Sluice boxes

    • View of the Keystone placer mine, shows frame mine buildings and a wooden sluice, San Miguel County, Colorado.
    • Keystone Mine (San Miguel County, Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Flumes--Colorado--San Miguel County--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mine buildings--Colorado--San Miguel...
    • [between 1882 and 1900?]
    • Keystone Placer Mine, sluice boxes

    • View of the Keystone Placer Mine in San Miguel County Colorado. Shows mining buildings and sluice apparatus.
    • Keystone Mine (San Miguel County, Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Flumes--Colorado--San Miguel County--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mine buildings--Colorado--San Miguel...
    • [between 1882 and 1900?]
    • Keystone placer mine giant at work

    • View of mining operations at the Keystone Mine in San Miguel County, Colorado. Shows sluice boxes and a large pipe with hydraulic nozzles.
    • Keystone Mine (San Miguel County, Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Flumes--Colorado--San Miguel County--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.
    • [between 1882 and 1900?]
    • Keystone Placer Mine. Giant at work.

    • View of a placer mining operation at Keystone Placer Mine, San Miguel County, Colorado; shows a monitor nozzle and a water pipe.
    • Keystone Mine (San Miguel County, Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Penstocks--Colorado--San Miguel...
    • [between 1882 and 1900?]
    • Placer miners

    • Men and women pose near a placer mining operation in San Miguel County, Colorado. One man holds a gold pan. Miners aim a nozzle or monitor at the mine pit nearby.
    • San Miguel County (Colo.)--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Miners--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Women--Colorado--San Miguel County--1880-1900.
    • [between 1880 and 1900]
    • Placer mining on the San Miguel River

    • View of mining operations along the San Miguel River in San Miguel County, Colorado. Plumes of water emerge from pipes with hydraulic nozzles (monitors).
    • San Miguel County (Colo.)--1880-1900.; San Miguel River (Colo.)--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Rivers--Colorado--San Miguel County--1880-1900.
    • [between 1882 and 1900?]
    • Marshall Basin Mines

    • View of mines in Marshall Basin including large tailing piles, a collection of office buildings, mill buildings, and tents near timberline, San Miguel County, Colorado.
    • Basins (Geology)--Colorado--San Miguel County--1880-1900.; Marshall Basin (Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Mine buildings--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Tailing...
    • [between 1882 and 1900?]
    • Marshall Basin mines [illegible]

    • View of mines in Marshall Basin including large tailing piles, collection of frame office and mill buildings, and tents near timberline, San Miguel County, Colorado.
    • Marshall Basin (Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Mine buildings--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Tailings embankments--Colorado--San Miguel County--1880-1900.
    • [between 1882 and 1900?]
    • Marshall Basin mines, Telluride

    • View of Sheridan Mine # 2 (two) on Marshall Basin above timberline with frame buildings, tent, flume, and tailings, San Miguel County, Colorado.
    • Marshall Basin (Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Mine buildings--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Tailings embankments--Colorado--San Miguel County--1880-1900.
    • [between 1882 and 1900?]
    • Marshall Basin mines

    • View of mines in Marshall Basin, San Miguel County, Colorado. Tailings, mine railroads, and wood frame buildings are nearby.
    • Basins (Geology)--Colorado--San Miguel County--1880-1900.; Marshall Basin (Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Mine buildings--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.
    • [between 1882 and 1900?]
    • Illium [sic] Curve from toll road

    • Panoramic view of a valley near Ilium Curve, a loop of narrow gauge Denver and Rio Grande Railroad track near Ilium, (San Miguel County), Colorado. Shows an abandoned mine with a rail and plank sluice and log and wood frame buildings, dirt roads...
    • San Miguel County (Colo.)--1880-1900.; Sunshine Mountain (San Miguel County, Colo.)--1880-1900.; Abandoned mines--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.
    • [between 1880 and 1900?]
    • Marshall Basin mines, Telluride

    • View of mines in Marshall Basin including large tailing piles, collection of frame office and mill buildings, and tents near timberline, San Miguel County, Colorado.
    • Basins (Geology)--Colorado--San Miguel County--1880-1900.; Marshall Basin (Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Mine buildings--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Tailings...
    • [between 1882 and 1900?]
    • Sunnyside Mine

    • View of the Sunnyside Mill, in San Miguel County, Colorado; shows gold mining processing facilities, sheds, ore cart tracks, and stacked lumber.
    • San Miguel County (Colo.)--1880-1900.; Mills--Colorado--San Miguel County--1880-1900.; Mine railroads--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.
    • [between 1880 and 1900?]
    • Mine interior, San Miguel County, Colorado

    • View of two miners using a sledgehammer and spike to drive a blasting hole into the roof of a narrow tunnel in an unidentified mine, San Miguel County, Colorado.
    • Blasting--Colorado--San Miguel County--1880-1900.; San Miguel County (Colo.)--1880-1900.; Interiors--Colorado--San Miguel County--1880-1900.; Miners--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.
    • [between 1880 and 1900?]
    • Mining, Colorado

    • View of the Smuggler-Union Mine near Telluride (San Miguel County), Colorado. Shows mine buildings, roads and tailings piles.
    • Mine buildings--Colorado--San Miguel County--1880-1900.; San Miguel County (Colo.)--1880-1900.; Smuggler-Union Mine (San Miguel County, Colo.)--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.
    • [between 1880 and 1900?]

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