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  • All fields: Mining machinery--1930-1940.
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    • Mining machinery

    • View of abandoned mine equipment that includes a wooden frame and an auger drill bit.
    • Mining machinery--1930-1940.; Mining--1930-1940.; Ruins--1930-1940.; United States. Works Progress Administration.
    • [between 1960 and 1980?]
    • San Jaun [i. e. Juan] Metals Corp. loading dirt from river bed into Trummal [i. e. trommel]

    • View of a mine operation near Telluride, San Miguel County, Colorado. A steam shovel loads a trommel screen with rock which is separated and loaded in a truck via a conveyor. The material is hauled to the Gold Run Mill. The side of the steam shovel...
    • Mining machinery--1930-1940.; Telluride (Colo.)--1930-1940.; Automobiles--1930-1940.; Conveying systems--1930-1940.; Miners--1930-1940.; Mining--1930-1940.; Steam shovels--1930-1940.
    • [between 1930 and 1940]

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