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    • P. W. A. [sic] mining class - Denver

    • P. W. A. [sic] mining class - Denver

    • View shows W. P. A. students learning the art of placer mining by using a rocker on the banks of an unidentified stream, Denver, Colorado. A rocker consists of a screen box on top draining to a larger box below which is inlaid with riffles to catch...

    • United States. Works Progress Administration of Colorado.--1930-1940.; Denver (Colo.)--1930-1940.; Hydraulic mining--Colorado--Denver--1930-1940.; Mining equipment--Colorado--Denver--1930-1940.; Mining--Colorado--Denver--1930-1940.

    • [1930]
    • Hydraulic placer mining class

    • Hydraulic placer mining class

    • View of a Public Works Administration hydraulic gold mining class, in Denver, Colorado; shows men with a rocker sluice and gold pans. One wears high boots, another smokes a cigarette.

    • United States. Public Works Administration.--1930-1940.; Sluices--Colorado--Denver--1930-1940.; Denver (Colo.)--1930-1940.; Gold mining--Colorado--Denver--1930-1940.; Hydraulic mining--Colorado--Denver--1930-1940.;...

    • [between 1930 and 1940?]

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