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  • All fields: Hydraulic mining.
(22 results)



Display: 50

    • 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

    • 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 Placers no. 2, looking down

    • View of a U.S. Gold Placers company flume beside the San Miguel River in Montrose or San Miguel County, Colorado. Wooden timbers form a square water trough used to transport water for hydraulic mining. Excess water pours from a hand gate in the...
    • United States Gold Placers, Ltd.--1880-1890.; San Miguel River (Colo.)--1880-1890.; Flumes.; Gold mining.; Hydraulic mining.; Rivers.
    •  
    • Hand gate of placer works Dallas, Colo.

    • View of a Wooden pressure box and hand gate on a flume on a hillside near Dallas in Ouray County, Colorado. Wooden timbers form a square water trough used to transport water for hydraulic mining. The hand gate is used to release water from the...
    • Dallas (Colo.)--1880-1890.; Ouray County (Colo.)--1880-1890.; Flumes.; Gold mining.; Hydraulic mining.; Rivers.
    •  
    • 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?]
    • U.S. Gold Placers, no. 30

    • View of a hydraulic monitor nozzle at a U.S. Gold Placers mining site near the San Miguel River in Montrose or San Miguel County, Colorado. A water pipe is on a hillside in the distance.
    • United States Gold Placers, Ltd.--1880-1890.; Gold mining.; Hydraulic mining.; Nozzles.
    •  
    • Giants at work, U.S.G.P. no. 28

    • View of a U.S. Gold Placers mining site beside the San Miguel River in Montrose or San Miguel County, Colorado. Two hydraulic monitor nozzles are used to wash gravel from the soil. A water pipeline feeds the nozzles. The pipe rests in wooden...
    • United States Gold Placers, Ltd.--1880-1890.; San Miguel River (Colo.)--1880-1890.; Gold mining.; Hydraulic mining.; Rivers.; Nozzles.
    •  
    • 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?]
    • 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.
    •  
    • Flume for hydraulic mining near Leadville, Colo.

    • View of a flume, used to supply water for hydraulic mining, on a hillside probably near Leadville, in Lake County, Colorado. The wooden structure has log uprights.
    • Lake County (Colo.)--1880-1900.; Flumes.; Hydraulic mining.
    •  
    • Flume for hydraulic mining near Leadville, Colo.

    • View of a wooden flume used to supply water for hydraulic mining, on a hillside probably near Leadville, in Lake County, Colorado. The structure has log uprights. Shows rock formations.
    • Lake County (Colo.)--1880-1900.; Flumes.; Hydraulic mining.
    •  
    • U.S. Gold Placers, no. 16, hauling pipes into place

    • Men haul a large section of water pipe on a small wooden skid through cedar and pine trees near the San Miguel River in Montrose or San Miguel County, Colorado. The pipe is to be used to move water for a hydraulic placer mine. A rope, attached to...
    • United States Gold Placers, Ltd.--1880-1890.; Construction workers.; Construction.; Gold mining.; Horses.; Hydraulic mining.; Pipelines.; Pipes (Conduits)
    •  
    • U.S. Gold Placers no. 6, San Miguel River, building flume

    • Men pose beside a partially constructed wooden flume used in hydraulic mining by the United States Gold Placers company near the San Miguel River in Montrose or San Miguel County, Colorado. Stacks of lumber are near the flume.
    • United States Gold Placers, Ltd.--1880-1890.; San Miguel River (Colo.)--1880-1890.; Construction workers.; Construction.; Flumes.; Hydraulic mining.; Rivers.
    •  
    • Hydraulic mine near Leadville, Colo.

    • View of an unidentified hydraulic mine near Leadville in Lake County, Colorado. A miner directs a monitor nozzle to excavate and wash gravel from the ground. Shows a metal pipe attached to the nozzle. Mountains are in the distance.
    • Lake County (Colo.)--1880-1900.; Hydraulic mining.; Miners.; Nozzles.
    •  
    • Hydraulic mine near Leadville, Colo.

    • View of an unidentified hydraulic mine near Leadville in Lake County, Colorado. A miner operates a large mechanical crane, or hoist, with a forked basket The device has a metal frame and counter-weight and is supported on a timber upright. Cables...
    • Lake County (Colo.)--1880-1900.; Hoisting machinery.; Hydraulic mining.; Miners.; Tipples.
    •  
    • Gold dredge near Fairplay, Colo.

    • View of a hydraulic placer gold dredge built by the Yuba Manufacturing Company and located in Fairplay (Park County), Colorado.
    • Fairplay (Colo.)--1940-1950.; Dredges.; Gold dredging.; Hydraulic mining.
    •  
    • South Platte dredge in South Park, Colo.

    • View of a hydraulic placer gold dredge built by the Yuba Manufacturing Company and located in Fairplay (Park County), Colorado.
    • Fairplay (Colo.)--1940-1950.; Dredges.; Gold dredging.; Hydraulic mining.
    •  
    • Hydraulic mine near Leadville, Colo.

    • View of an unidentified hydraulic mine near Leadville in Lake County, Colorado. Miners direct monitor nozzles to excavate and wash gravel from the ground. A tipple is in the distance.
    • Lake County (Colo.)--1880-1900.; Hydraulic mining.; Miners.; Tipples.; Nozzles.
    •  

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