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  • All fields: Hydraulic mining.
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    • Hydraulic mining. The sluice blocks

    • Hydraulic mining. The sluice blocks

    • View of a placer gold mine sluice between eroded embankments in California.

    • Sluices--California--1860-1880.; Hydraulic mining--California--1860-1880.; Mining--California--1860-1880.

    • [between 1865 and 1880?]
    • Hydraulic mining. The flume - near Smartsville, Yuba County

    • Hydraulic mining. The flume - near Smartsville, Yuba County

    • View of a wooden flume on a high trestle, for placer gold mines near Smartville, Yuba County, California.

    • Smartville (Calif.)--1860-1880.; Flumes--California--Yuba County--1860-1880.; Hydraulic mining--California--Yuba County--1860-1880.; Mining--California--Yuba County--1860-1880.

    • [between 1865 and 1880?]
    • U.S. Gold placer no. 6, San Miguel River : building flume

    • U.S. Gold placer no. 6, San Miguel River : building flume

    • Men work on a flume for a U.S. Gold Placers mining operation beside the San Miguel River in Montrose or San Miguel County, Colorado. The workmen pose near a wooden flume that is under construction. Shows piles of lumber.

    • San Miguel River (Colo.-Utah)--1880-1890.; Construction.; Flumes.; Gold mining.; Hydraulic mining.; Laborers.; Rivers.

    • [between 1880 and 1890?]
    • Hydraulic mining. Miners piping off top dirt

    • Hydraulic mining. Miners piping off top dirt

    • View of a man using "Hydraulic Chief" type nozzles to aim jets of water at an eroded bluff, in (probably) California. Another man stoops in the gold mine, wearing a raincoat.

    • Hydraulic mining--California--1860-1880.; Miners--1910-1920.; Mining--California--1860-1880.

    • [between 1865 and 1880?]

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