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  • All fields: percussion-type
(8 results)



Display: 50

    • Slide Mine, jumbo, close-up, 3/4 rear

    • Two men work with compressed air, percussion-type rock drills called a stopers in the Slide Mine in Boulder County, Colorado. The men wear work clothes, hard hats, and electric mine lamps. Rocks and boulders litter the floor of the shaft.
    • Boulder County (Colo.)--1940-1950.; Slide Mine (Boulder County, Colo.)--1940-1950.; Boring--Colorado--Boulder County--1940-1950.; Drilling & boring machinery--Colorado--Boulder County--1940-1950.; Interiors--Colorado--Boulder County--1940-1950.;...
    • [between 1940 and 1950?]
    • Cresson Mine, stoper

    • A miner works with a compressed air, percussion-type rock drill called a stoper or "wiggle tail" at the Cresson Mine near Cripple Creek in Teller County, Colorado. The man wears a work jump suit and hard hat.
    • Cresson Mine (Teller County, Colo.)--1940-1950.; Teller County (Colo.)--1940-1950.; Boring--Colorado--Teller County--1940-1950.; Drilling & boring machinery--Colorado--Teller County--1940-1950.; Miners--Colorado--Teller County--1940-1950.;...
    • [between 1940 and 1950?]
    • Cresson Mine, stoper

    • A miner works with a compressed air, percussion-type rock drill called a stoper or "wiggle tail" at the Cresson Mine near Cripple Creek in Teller County, Colorado. The worker wears overalls and a hard hat. Boulders are scattered on the ground...
    • Cresson Mine (Teller County, Colo.)--1940-1950.; Teller County (Colo.)--1940-1950.; Boring--Colorado--Teller County--1940-1950.; Drilling & boring machinery--Colorado--Teller County--1940-1950.; Miners--Colorado--Teller County--1940-1950.;...
    • [between 1940 and 1950?]
    • Rico Argentine mine stoper

    • A man wears a miner cap with an attached lamp and uses a compressed air, percussion-type rock drill called a stoper in the Argentine Mine in Rico (Dolores County), Colorado.
    • Argentine Mine (Dolores County, Colo.)--1940-1950.; Rico (Colo.)--1940-1950.; Boring--Colorado--Rico--1940-1950.; Drilling & boring machinery--Colorado--Rico--1940-1950.; Miners--Colorado--Rico--1940-1950.; Mining--Colorado--Rico--1940-1950.
    • [between 1940 and 1950?]
    • Rico Argentine

    • A miner uses a compressed air, percussion-type rock drill called a stoper in the Argentine Mine in Rico (Dolores County), Colorado. The miner wears a hat with an attached lamp.
    • Argentine Mine (Dolores County, Colo.)--1940-1950.; Rico (Colo.)--1940-1950.; Boring--Colorado--Rico--1940-1950.; Drilling & boring machinery--Colorado--Rico--1940-1950.; Miners--Colorado--Rico--1940-1950.; Mining--Colorado--Rico--1940-1950.
    • [between 1940 and 1950?]
    • EPCD, drilling from column

    • A worker operates a compressed air, percussion-type rock drill near the East Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel), of the Colorado-Big Thompson Water Diversion Project, in Grand County, Colorado. The man wears a safety...
    • Alva B. Adams Tunnel (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Boring--Colorado--Grand County--1940-1950.; Construction workers--Colorado--Grand County--1940-1950.; Drilling & boring machinery--Colorado--Grand County--1940-1950.;...
    • [between 1940 and 1944?]
    • Underground in a mine

    • A miner drills an upward hole with a compressed air, percussion-type rock drill called a stoper in an unidentified mine in Gilpin County, Colorado.
    • Gilpin County (Colo.)--1870-1890.; Drilling & boring machinery--Colorado--Gilpin County--1870-1890.; Interiors--Colorado--Gilpin County--1870-1890.; Miners--Colorado--Gilpin County--1870-1890.; Mining--Colorado--Gilpin County--1870-1890.
    • [between 1870 and 1890?]
    • Wolf Tongue

    • A miner positions a compressed air, percussion-type rock drill called a stoper on the ceiling of a mine shaft at the Wolf Tongue tungsten mine near Nederland (Boulder County), Colorado. He wears overalls, a jacket, and hard hat.
    • Nederland (Colo.)--1930-1950.; Wolf Tongue Mine (Boulder County, Colo.)--1930-1950.; Boring--Colorado--Nederland--1930-1950.; Drilling & boring machinery--Colorado--Nederland--1930-1950.; Miners--Colorado--Nederland--1930-1950.;...
    • [between 1930 and 1950?]

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