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    • Inspectors in Eagle Mine

    • Inspectors work in a tunnel of the Eagle Mine near Boulder (Boulder County), Colorado. They wear miner's lights.
    • Abandoned mines--Colorado County--Boulder--1960-1970.; Mine inspection--Colorado--Boulder County--1960-1970.; Boulder County (Colo.)--1960-1970.; Eagle Mine (Boulder County, Colo.)--1960-1970.; Coal mining--Colorado--Boulder County--1960-1970.;...
    • March 26, 1966

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