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  • All fields: (hydraulic
(722 results)



Display: 50

    • Steven's Hydraulic Mines, near Oro City

    • Miners stand near Steven's Hydraulic Mine near Oro City (Leadville), Lake County, Colorado. The men use a hydraulic nozzle or monitor to spray water into the mine pit.
    •  
    • 1877
    • Hydraulic mining, Virginia City M.T.

    • View of a hydraulic mining operation in a stream bed in Virginia City, Montana. Shows a hose with a monitor nozzle, sluices, and a flume; water falls from ground level.
    • Jackson, William Henry, 1843-1942.
    • [between 1872 and 1878]
    • 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.
    • Thomas Houseworth & Co.
    • [between 1865 and 1880?]
    • Rollinsville, Colorado

    • A hydraulic mine juts into a body of water, possibly near Rollinsille, Colorado.
    • Lake, Harry H., 1860-1952.;
    • [between 1900 and 1920?]
    • Early placer mining

    • Placer miners work near a sluice in Russell Gulch, Gilpin County, Colorado. Their tools include wheelbarrows, shovels, picks, and pitchforks. Monitors spray water, mine buildings are on the surrounding hills. David Henderson is in the foreground,...
    •  
    • [between 1860 and 1870]
    • Hendrie & Bolthoff Manufacturing & Supply Company

    • Men and children, probably employees, pose on and near horse-drawn wagons at the Hendrie and Bolthoff Manufacturing and Supply Company on the corner of 17th (Seventeenth) and Wynkoop Streets in downtown Denver, Colorado. The four-story brick...
    •  
    • [between 1902 and 1910?]
    • Hydraulic mining Leadville

    • A miner stands in a ravine and aims a hydraulic nozzle or monitor as part of a placer mining operation near Leadville, Lake County, Colorado.
    •  
    • [between 1880 and 1890]
    • Clear Creek Series - Russell Gulch

    • Gold miners aim water jets at embankments in this Russell Gulch, Gilpin County, Colorado placer mine; men watch the hydraulic mining operation.
    • Collier, Joseph.
    • [between 1860 and 1970]
    • Hydraulic mining. The sluice blocks

    • View of a placer gold mine sluice between eroded embankments in California.
    • Thomas Houseworth & Co.
    • [between 1865 and 1880?]
    • Hydraulic gold mining, Alder gulch, near Virginia City

    • Miners sit and stand near hydraulic mining equipment at a placer mining operation in Alder gulch, Madison County, Montana. Water runs from the top of the gulch. Shows sluice boxes; water sprays from a monitor nozzle.
    • Jackson, William Henry, 1843-1942.
    • [between 1870 and 1880?]
    • Hydraulic mining, Park County

    • View of a gold placer mine in Park County, Colorado; shows a steam [?] powered crane with lettering: "Snowstorm Hydraulic Co.," and a boulder in its grasp. Across a stream, on tailings, a miner runs a "monitor" nozzle.
    •  
    • [between 1880 and 1900?]
    • Hydraulic mining, Virginia City, Montana

    • View of a hydraulic mining operation with men with hoses and monitor nozzles, Virginia City, Montana. Shows one story frame buildings and a rock and wood strewn gully.
    • Jackson, William Henry, 1843-1942.
    • between 1872 and 1878
    • Hydraulic Mining

    • View of mined slopes in Colorado; man in wide brim hat uses a nozzle for hydraulic placer gold mining, shows frame buildings.
    • McClure, Louis Charles, 1867-1957.
    • [between 1890 and 1910?]
    • Hydraulic mining near Virginia City, Montana

    • View of a hydraulic mining operation in Virginia City, Montana; shows wooden sluices, a hose on a reel, rock tailings, a hoist and a section of the sluice or flume, and abandoned headgates.
    • Jackson, William Henry, 1843-1942.
    • [between 1872 and 1878]
    • Hydraulic placer mining class

    • View of a Public Works Administration hydraulic gold mining class, in Denver, Colorado; shows men with a rocker sluice and gold pans. One wears high boots, another smokes a cigarette.
    •  
    • [between 1930 and 1940?]
    • Hydraulic placer mining class

    • View of a Public Works Administration hydraulic gold mining class, in Denver, Colorado; shows men with a rocker sluice and gold pans. One wears high boots and uses a shovel.
    •  
    • [between 1930 and 1940?]
    • 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.
    • Luke, Wellington O.
    •  
    • 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...
    • Luke, Wellington O.
    •  
    • Seeking Gold with Water Pressure.

    • A man stands near a high power water hose as part of a hydraulic mining operation in California. The man stands in a deep pit surrounded by a rocky landscape.
    • Poley, H. S. (Horace Swartley)
    • [between 1890 and 1915]
    • Hydraulic dredges

    • Two hydraulic placer gold mining dredges (probably the Eleanor Dredges, east of Golden), Colorado. A solitary man poses nearby.
    •  
    • [1900?]
    • U.S.G.P.

    • Aerial view of a U.S. Gold Placer Company hydraulic placer mine site beside the San Miguel River in Montrose County or San Miguel County, Colorado. A man poses on a hillside. Water from hydraulic monitors (nozzles) sprays over gravel in the...
    • Goodman, Charles, d. 1912.
    •  
    • 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.
    • Luke, Wellington O.
    •  
    • 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.
    • Luke, Wellington O.
    •  
    • 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.
    • Luke, Wellington O.
    •  
    • Hydraulic mining near Breckenridge, Colorado

    • View of hydraulic gold placer mining, near Breckenridge, Summit County, Colorado; shows pipes, water jets, flumes, buildings, and mountains.
    • Williamson-Haffner.
    • July, 1897
    • So. Platte Dr. Co. gen. view

    • View of the South Platte Dredging Company hydraulic placer gold mining dredge probably near Fairplay (Park County), Colorado. Tailings piles are nearby.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • So. Platte Dr. Co., rollers

    • View of roller mechanism on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • Water supply ditch, So. Platte Dr. Co.

    • View of a ditch that leads to the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Parker County). Gravel tailing piles are nearby and mountains are in the distance. Shows part of the dredge.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • Flume in sandstone canyon

    • Flume between a river and rock pinnacles: water diversion for hydraulic gold placer mining.
    •  
    • [between 1900 and 1930?]
    • Placer mining Leadville

    • Miners stand near a hydraulic nozzle or monitor as they survey a placer mining operation near Leadville, Lake County, Colorado.
    • Luke, Wellington O.
    • [between 1882 and 1889]
    • So. Platte Dr. Co.

    • View of iron beams, cables, and pulleys on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • So. Platte Dr. Co.

    • View of an extended arm and conveyor belt on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Gravel tailing piles are on the ground at the end of the mechanical arm.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • Flume, cliffs, and tunnel

    • Flume built on rock cliff (with tunnel): water diversion for hydraulic gold placer mining.
    •  
    • [between 1900 and 1930?]
    • So. Platte Drg. Co.

    • View of equipment on the South Platte Dredging Company hydraulic placer gold mining dredge probably near Fairplay (Park County), Colorado. Shows chains, cables, and iron beams.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • View of bucket mechanisms on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows iron beams, cables, and buckets.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • Gold miner

    • Hydraulic placer mining, a man pans for gold. He wears high boots and smokes a pipe.
    •  
    • [between 1880 and 1900?]
    • So. Platte Drg. Co.

    • Mechanized buckets scoop up soil on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows rock filled alluvial soil, cables, iron beams, and buckets.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • View of a tall iron beam structure that is part of the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows the iron beam framework, pulleys, and cables.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • So. Platte Dr. Co., tragles [sic.]

    • Water flows from pipes into long sluice boxes on the South Platte Dredging Company hydraulic placer gold mining dredge probably near Fairplay (Park County), Colorado.
    • Zellers, Bob.
    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • View of an iron framework on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows mechanized buckets transporting dirt, cables, iron beams, and the Platte River.
    • Zellers, Bob.
    • [between 1930 and 1950?]

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