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    • Exhaust blower, Treasury Tunnel

    • View of an exhaust blower at the Treasury Tunnel Mine in Ouray County, Colorado. A ladder is against exhaust ducts or pipes outside a frame and tar paper sided building at the gold ore processing site.
    • Ouray County (Colo.)--1930-1950.; Treasury Tunnel Mine (Ouray County, Colo.)--1930-1950.; Fans (Machinery)--Colorado--Ouray County--1930-1950.; Mine buildings--Colorado--Ouray County--1930-1950.; Mining--Colorado--Ouray County--1930-1950.
    • [between 1939 and 1950?]

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