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  • All fields: trommel
(8 results)



Display: 50

    • San Jaun [i. e. Juan] Metals Corp. loading dirt from river bed into Trummal [i. e. trommel]

    • View of a mine operation near Telluride, San Miguel County, Colorado. A steam shovel loads a trommel screen with rock which is separated and loaded in a truck via a conveyor. The material is hauled to the Gold Run Mill. The side of the steam shovel...
    • Mining machinery--1930-1940.; Telluride (Colo.)--1930-1940.; Automobiles--1930-1940.; Conveying systems--1930-1940.; Miners--1930-1940.; Mining--1930-1940.; Steam shovels--1930-1940.
    • [between 1930 and 1940]
    • Gold slide placer Fairplay, Colorado

    • View of a hydraulic gold mine in Fairplay, Park County, Colorado; shows a trommel (a revolving stone filter-screen), tailings, a pond, and corrugated metal sheds.
    • Mining machinery--Colorado--Fairplay--1950-1960.; Fairplay (Colo.)--1950-1960.; Gold mining--Colorado--Fairplay--1950-1960.; Hydraulic mining--Colorado--Fairplay--1950-1960.; Mining--Colorado--Colorado--Fairplay--1950-1960.
    • 1955
    • Gold slide placer Fairplay, Colorado

    • View of a hydraulic gold mine in Fairplay, Park County, Colorado; shows a trommel (a revolving stone filter-screen), tailings, and a corrugated metal shed with lettering: "Danger."
    • Mining machinery--Colorado--Fairplay--1950-1960.; Fairplay (Colo.)--1950-1960.; Gold mining--Colorado--Fairplay--1950-1960.; Hydraulic mining--Colorado--Fairplay--1950-1960.; Mining--Colorado--Fairplay--1950-1960.
    • 1955
    • Dredge, Summit County

    • Ridson Company's Couch Dredge, in Breckenridge, Summit County, Colorado. The hydraulic placer gold mining vessel is under construction; miners pose by the furnace, trommel, and bucket-line.
    • Gold dredging--Colorado--Breckenridge--1890-1900.; Mining machinery--Colorado--Breckenridge--1890-1900.; Breckenridge (Colo.)--1890-1900.; Hydraulic mining--Colorado--Breckenridge--1890-1900.; Miners--Colorado--Breckenridge--1890-1900.;...
    • 1897 or 1898?
    • Mill equipment

    • View of an abandoned trommel or rotary screen encased in a support structure, probably in San Miguel County, Colorado.
    • Milling-machines--Colorado--San Miguel County--1940-1950.; San Miguel County (Colo.)--1940-1950.; Mining--Colorado--San Miguel County--1940-1950.
    • [1940?]
    • Concrete / gravel mixer used for construction @ Gates rubber co.

    • Gates Rubber Company workers use a trommel screen housed in a wood structure with wheels and belts in Denver, Colorado; shows an ore cart on railroad tracks.
    • Gates Rubber Company--People--1910-1930.; Denver (Colo.)--1910-1930.; Dump cars--Colorado--Denver--1910-1930.; Machinery--Colorado--Denver--1910-1930.
    • [between 1910 and 1930?]

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