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  • All fields: Concentrating
(272 results)



Display: 50

    • Clear Creek County (near Idaho Springs) mining scene

    • Men pose by a dam spillway on Clear Creek near Idaho Springs (Clear Creek County), Colorado. The buildings of the State Ore Sampling Co. and the Jackson Concentrating Works are nearby.
    • Jackson Concentrating Works (Colo.)--1880-1900.; State Ore Sampling Co. (Colo.)--1880-1900.; Clear Creek (Clear Creek County, Colo.)--1880-1900.; Idaho Springs (Colo.)--1880-1900.; Dams--Colorado--Idaho Springs--1880-1900.; Mining--Colorado--Idaho...
    • [between 1940 and 1960]
    • Concentrating table and jigs

    • Two miners, one possibly Fred Bishopp, stand next to a concentrating table and wood frame jigs inside the Clear Creek County Mine and mill in Clear Creek County, Colorado.
    • Mine buildings--Colorado--Clear Creek County--1890-1900.; Clear Creek County (Colo.)--1890-1900.; Interiors--Colorado--Clear Creek County--1890-1900.; Mills--Colorado--Clear Creek County--1890-1900.; Mining--Colorado--Clear Creek...
    • [1899?]
    • Concentrating tables

    • Interior view of probably the Gold King Mill in Gladstone (San Juan County), Colorado. Shows a row of concentrating machinery, a staircase, and an open beam ceiling.
    • Gladstone (Colo.)--1880-1910.; Gold mining--Colorado--Gladstone--1880-1910.; Interiors--Colorado--Gladstone--1880-1910.; Mills--Colorado--Gladstone--1880-1910.; Ore industry--Colorado--Gladstone--1880-1910.
    • [between 1885 and 1920?]
    • Clear Creek City - near Idaho Springs

    • Two men stand in a clearing near the State Ore Sampling Company and the Jackson Concentrating Works, Clear Creek City (Clear Creek County), Colorado.
    • Jackson Concentrating Works (Colo.)--1880-1910.; State Ore Sampling Co. (Colo.)--Buildings--1880-1910.; Clear Creek County (Colo.)--1880-1910.; Mining--Colorado--Clear Creek County--1880-1910.; Ore industry--Colorado--Clear Creek County--1880-1910.
    • [between 1890 and 1910?]
    • Tomboy gold mine

    • Tomboy Mine facilities, located at 11,412 feet elevation on the lower slopes of Ajax Mountain, Savage Basin, San Miguel County, Colorado, include a concentrating mill and a three story boarding house with veranda.
    • Ajax Mountain (Colo.)--1910-1920.; Telluride (Colo.)--1910-1920.; Lodging houses--Colorado--Denver--1910-1920.; Mining--Colorado--Denver--1910-1920.
    • [1912]
    • Mining

    • View of a concentrating mill in (probably) Colorado; also shows a stream, willows, and tailings.
    • Mills--Colorado--1900-1920.; Mining--Colorado--1900-1920.; Valleys--Colorado--1900-1920.
    • [between 1900 and 1920?]
    • Silver Plume

    • View in Silver Plume, Colorado; shows Silver Street, Republican Mountain, concentrating mill at the bottom of the Diamond Tunnel waste pile, and Clear Creek in the near foreground. Downtown Silver Plume is between the mill and the creek.
    • Silver Plume (Colo.)--1890-1910.; Streets--Colorado--Silver Plume--1890-1910.
    • [between 1890 and 1910]
    • Idaho Springs

    • View of Idaho Springs (Clear Creek County), Colorado; shows Clear Creek, businesses, houses, the Argo Mine, tailing piles, ore cart tracks, Colorado and Southern Railroad tracks, and the Jackson Concentrating Works at the entrance to Chicago Creek...
    • Clear Creek (Clear Creek County, Colo.)--1900-1910.; Idaho Springs (Colo.)--1900-1910.; Cities & towns--Colorado--Idaho Springs--1900-1910.; Mining--Colorado--Idaho Springs--1900-1910.; Streams--Colorado--Idaho Springs--1900-1910.
    • [between 1900 and 1910?]
    • Interior of Nugget Mill. Glendale Colo.

    • Interior of the Nugget Mill in Glendale, Boulder County, Colorado; shows grooved Wilfley or concentrating tables (for processing ore from mines), pulleys, belts, and open beam ceilings.
    • Glendale (Boulder County, Colo.)--1900-1910.; Interiors--Colorado--Glendale--1900-1910.; Milling machines--Colorado--Glendale--1900-1910.; Mills--Colorado--Glendale--1900-1910.; Mining--Colorado--Glendale--1900-1910.
    • 1902
    • Dyersville

    • View of a collapsing building in the ghost town of Dyersville, Colorado, in Summit County. Evergreen forest in background.
    • Dyersville (Colo.)--1960-1970.; Abandoned buildings--Colorado--Dyersville--1960-1970.
    • August, 1961
    • Dyersville, Colorado

    • View of the ruins of the mill in the ghost town of Dyersville, Colorado, in Summit County. Piles of boards and debris litter the foreground. Evergreen forest in background.
    • Dyersville (Colo.)--1960-1970.; Abandoned buildings--Colorado--Dyersville--1960-1970.
    • September, 1961
    • Wilfley tables Green Mill

    • Interior view of Green Mill, in (probably) Colorado; shows a man inspecting Wilfley type concentrating tables, belts and pulleys.
    • Interiors--Colorado--1890-1900.; Milling machines--Colorado--1890-1900.; Mills--Colorado--1890-1900.; Mining--Colorado--1890-1900.
    • March 1899
    • Idaho Springs

    • View of mine tailings and settling ponds in Idaho Springs (Clear Creek County), Colorado; Clear Creek water runs over spillways. Processing or smelter sheds have letters: "Jackson Concentrating Works," and "State Ore Sampling Co."
    • Clear Creek (Clear Creek County, Colo.)--1880-1900.; Idaho Springs (Colo.)--1880-1900.; Mining--Colorado--Idaho Springs--1880-1900.; Streams--Colorado--Idaho Springs--1880-1900.
    • [between 1880 and 1900?]
    • 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...
    • Hendrie & Bolthoff Manufacturing & Supply Co. (Denver, Colo.)--1900-1910.; Denver (Colo.)--1900-1910.; Carts & wagons--Colorado--Denver--1900-1910.; Commercial facilities--Colorado--Denver--1900-1910.; Industry--Colorado--Denver--1900-1910.;...
    • [between 1902 and 1910?]
    • Old Hundred Mill, in Cunningham Gulch

    • View of Old Hundred Mill, in Cunningham Gulch, San Juan County, Colorado; shows mining ore concentrating buildings on mountain slopes, and miners' houses.
    • Old Hundred Mine (San Juan County, Colo.)--1930-1940.; San Juan County (Colo.)--1930-1940.; Mills--Colorado--San Juan County--1930-1940.; Mining--Colorado--San Juan County--1930-1940.
    • [between 1930 and 1940?]
    • Vanning tables

    • Interior view of a mine processing facility in (probably) Colorado; shows Vanning tables, for concentrating ore.
    • Mine buildings--Colorado--1930-1940.; Interiors--Colorado--1930-1940.; Mills--Colorado--1930-1940.; Mining--Colorado--1930-1940.
    • [between 1933 and 1939?]
    • Concentrates ready to ship

    • A miner stands next to a conveyer belt or concentrating table and a pile of separated ore at the Clear Creek Mill, probably in Idaho Springs, Clear Creek County, Colorado.
    • Ore handling--Colorado--Clear Creek County--1890-1900.; Clear Creek County (Colo.)--1890-1900.; Interiors--Colorado--Clear Creek County--1890-1900.; Miners--Colorado--Clear Creek County--1890-1900.; Mining--Colorado--Clear Creek County--1890-1900.;...
    • 1899
    • Flotation mill & Wilfley table

    • Interior of mine processing sheds in (probably) Colorado; shows Wilfley concentrating tables, machinery, and men working.
    • Mine buildings--Colorado--1930-1940.; Interiors--Colorado--1930-1940.; Mills--Colorado--1930-1940.; Mining--Colorado--1930-1940.
    • [between 1933 and 1939?]
    • Gold Prince Mill

    • Interior view of Gold Prince Mill in Gladstone (San Juan County), Colorado. Shows an open beam ceiling, windows, staircase, and possibly a row of Wilfley concentrating tables.
    • Gladstone (Colo.)--1900-1920.; Gold mining--Colorado--Gladstone--1900-1920.; Interiors--Colorado--Gladstone--1900-1920.; Mills--Colorado--Gladstone--1900-1920.; Ore industry--Colorado--Gladstone--1900-1920.
    • [between 1907 and 1917?]
    • Ghost towns - ore processing - Colorado

    • Interior view of mining processing sheds in Colorado; shows Vanning or ore concentrating machines.
    • Mine buildings--Colorado--1900-1940.; Interiors--Colorado--1900-1940.; Mills--Colorado--1900-1940.; Mining--Colorado--1900-1940.
    • [between 1900 and 1940?]
    • Perigo, Central City

    • Mine with rows of concentrating tables (Gilpin County Cast Iron Bumping Table), wheelbarrow, and machinery, Perigo, Gilpin County, Colorado.
    • Mines and mineral resources--Colorado--Perigo--1890-1910.; Perigo (Colo.)--1890-1910.; Industry--Colorado--Perigo--1890-1910.; Interiors--Colorado--Perigo--1890-1910.; Mining--Colorado--Perigo--1890-1910.
    • [1890-1910]
    • Blackhawk - Iron City Stamp Mill (Int.)

    • mortars and amalgamated with the gold in the ore. The stamps were periodically stopped and the amalgam was retrieved and then sold to banks or the mint.; The interior of a stamp mill, possibly the Iron City Stamp Mill in Blackhawk, Colorado, shows...
    • Ore-dressing plants--Colorado--Blackhawk--1870-1910.; Ore-dressing--Colorado--Blackhawk--1870-1910.; Blackhawk (Colo.)--1870-1910.; Gilpin County (Colo.)--1870-1910.; Gold mining--Colorado--Blackhawk--1870-1910.
    • [between 1935 and 1950?]
    • Idaho Springs, Colo.

    • View looking southwest of Idaho Springs, Colorado, shows Clear Creek, Chicago Creek gulch, lower portion of Flirtation Peak, residences, Colorado Central Railroad track, Virginia Street, electric utility poles, and the Bryan house (castle); Jackson...
    • Idaho Springs (Colo.)--1900-1910.
    • [between 1900 and 1910]
    • Idahoe [sic] Springs, Colo.

    • Panorama view of Idaho Springs, Colorado; shows the Argo mining operation with tailing piles and ore carts, Colorado and Southern Railroad tracks, Clear Creek, a small gazebo, the Natatorium, Flirtation Peak with roads and tailings, wood frame...
    • Idaho Springs (Colo.)--1900-1910.; Cities & towns--Colorado--Idaho Springs--1900-1910.; Mining--Colorado--Idaho Springs--1900-1910.; MCC-198
    • [between 1900 and 1907]
    • Idahoe [sic] Springs, Colo.

    • The center of the panorama view of Idaho Springs, Colorado, includes: the Argo Mine with tailing and timber piles and ore cart tracks in foreground, residences along Colorado Boulevard, Colorado and Southern Railroad tracks, Clear Creek, Wykoff...
    • Colorado and Southern Railway--1900-1910.; Idaho Springs (Colo.)--1900-1910.; Business districts--Colorado--Idaho Springs--1900-1910.; Houses--Colorado--Idaho Springs--1900-1910.; Mining--Colorado--Idaho Springs--1900-1910.
    • [between 1900 and 1907]
    • Idahoe [sic] Springs, Colo.

    • Panorama view of Idaho Springs, Colorado; shows the Argo mining operation with tailing piles and ore carts, Colorado and Southern Railroad tracks, Clear Creek, a small gazebo, the Natatorium, Flirtation Peak with roads and tailings, wood frame...
    • Idaho Springs (Colo.)--1900-1910.; Cities & towns--Colorado--Idaho Springs--1900-1910.; Mining--Colorado--Idaho Springs--1900-1910.
    •  
    • Idaho Springs, Colo.

    • Panorama view of Idaho Springs, Colorado; shows the Argo mining operation, tailing and timber piles, ore cars, Colorado and Southern Railroad tracks, Clear Creek, a gazebo, the Natatorium, Flirtation Peak, frame residences on Colorado Boulevard,...
    • Colorado and Southern Railway--1900-1910.; Idaho Springs (Colo.)--1900-1910.; Cities & towns--Colorado--Idaho Springs--1900-1910.; Mining--Colorado--Idaho Springs--1900-1910.; Railroad tracks--Colorado--Idaho Springs--1900-1910.
    •  

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