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    • 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?

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