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  • All fields: Mining--Colorado--Boulder County--1890-1900.
(6 results)



Display: 50

    • Slide mine, Gold Hill, Colo.

    • View of the first Slide mill on the south side of Left Hand Canyon, Boulder County, Colorado. It is perched on the side of a steep hill with a large tailings pile above it and to the side. In the 1930s, the sixty foot timber wall of the mine's...
    • Tailings embankments--Colorado--Boulder County--1890-1900.; Boulder County (Colo.)--1890-1900.; Left Hand Canyon (Colo.)--1890-1900.; Mills--Colorado--Boulder County--1890-1900.; Mining--Colorado--Boulder County--1890-1900.
    • 1890?
    • Near Ward, Colo.

    • Two miners stand near a mine dump and an unidentified mill near Ward, Boulder County, Colorado.
    • Spoil banks--Colorado--Boulder County--1890-1900.; Tailings embankments--Colorado--Boulder County--1890-1900.; Boulder County (Colo.)--1890-1900.; Mills--Colorado--Boulder County--1890-1900.; Miners--Colorado--Boulder County--1890-1900.;...
    • [between 1890 and 1900]
    • Mining camp, west of Eldora

    • View of the Happy Valley Placer Co. mining camp in the Grand Island Mining District, Boulder County, Colorado with tents and a buggy. John H. Kemp leans on the fence to the left; Engineer August Mathez stands with a transit instrument and tripod...
    • Happy Valley Placer Company (Colo.)--Facilities--1890-1900.; Mining camps--Colorado--Boulder County--1890-1900.; Boulder (Colo.)--1890-1900.; Mining--Colorado--Boulder County--1890-1900.; Tents--Colorado--Boulder County--1890-1900.; Kemp, John H.;...
    • Summer 1892
    • A scene in Boulder county, mine near Eldora camp

    • Two men stand in a snow covered landscape near an abandoned boiler and mine site in Boulder County, Colorado.
    • Abandoned mines--Colorado--Boulder County--1890-1900.; Boulder County (Colo.)--1890-1900.; Mining--Colorado--Boulder County--1890-1900.
    • 1890
    • Near Ward, Colo.

    • View of a sluice constructed on a mine dump and an unidentified mill building near Ward, Boulder County, Colorado.
    • Sluices--Colorado--Boulder County--1890-1900.; Spoil banks--Colorado--Boulder County--1890-1900.; Tailings embankments--Colorado--Boulder County--1890-1900.; Boulder County (Colo.)--1890-1900.; Mining--Colorado--Boulder County--1890-1900.
    • [between 1890 and 1900]
    • Miners and sluice

    • Miners with rakes and shovels attend a sluice system at an unidentified mine, possibly in Boulder County, Colorado.
    • Mining--Colorado--Boulder County--1890-1900.; Sluices--Colorado--Boulder County--1890-1900.; Boulder County (Colo.)--1890-1900.; Hydraulic mining--Colorado--Boulder County--1890-1900.; Miners--Colorado--Boulder County--1890-1900.
    • [between 1890 and 1900?]

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