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  • All fields: (OCoLC)214327397
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    • Pressure box no. 2, U.S. Gold Placers no. 32

    • Men sit on a wooden pressure box at the end of a flume used for hydraulic mining by the U.S. Gold Placers Company, near the San Miguel River in Montrose or San Miguel County, Colorado. A building and tents are in the valley in the distance.
    • United States Gold Placers, Ltd.--1880-1890.; Flumes.; Hydraulic mining.; Mining equipment.
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