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  • All fields: Miners--1910-1920.
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    • Hydraulic mining operation

    • Hydraulic mining operation

    • View of a placer mine by a river; miners pose by a rocker and sluice, climbing a pole, and in an ore car. A furnace and barrels are by pipes and a ditch; frame buildings, automobiles, and a freight car with letters: "C N N" [?] are in the...

    • Hydraulic mining--1910-1920.; Miners--1910-1920.; Mining--1910-1920.

    • [between 1910 and 1920?]
    • Starting a hole

    • Starting a hole

    • A miner, wearing denim overalls and a helmet with headlamp, prepares to start a hole in the wall of a tunnel in an unidentified mine. He is using a pneumatic drill which is supported by a double screw column.

    • Drilling & boring machinery--1910-1920.; Interiors--1910-1920.; Miners--1910-1920.; Mining--1910-1920.

    • [between 1910 and 1920?]
    • Hydraulic mine operation

    • Hydraulic mine operation

    • Miners run a "Little Giant" monitor, aiming a jet of water at excavated embankments. The machine has a rock-weighted counterbalance.

    • Hydraulic mining--1890-1920.; Miners--1910-1920.; Mining--1890-1920.

    • [between 1890 and 1920?]
    • 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?]
    • He mined for gold

    • He mined for gold

    • Portrait of a miner. He wears a wide-brimmed hat.

    • Miners--1910-1920.; Mining--1910-1920.

    • [between 1910 and 1920]

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