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  • All fields: Mining--Colorado--1940-1950.
(20 results)



Display: 50

    • Mining contest, drilling

    • Miners drill into rock with a pneumatic drill, at a demonstration in (probably) Colorado.
    • Colorado--1940-1950.; Contests--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [between 1940 and 1950]
    • Mine

    • View of an unidentified mining camp with mill buildings, possibly in San Juan County, Colorado.
    • Mining camps--Colorado--1940-1950.; Mills--Colorado--1940-1950.; Mining--Colorado--1940-1950.; Mountains--Colorado--1940-1950.
    • [1940?]
    • Mining pit and tailings

    • View of mine operations or a gravel plant in (probably) Colorado; a processing building has a drive through loading chute. Ponds, railroad grade, a town, mountains and cirrus clouds are in the distance.
    • Sand and gravel plants--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [between 1940 and 1950?]
    • Mill

    • View of an abandoned mill in Colorado.
    • Mills--Colorado--1940-1950.; Mining--Colorado--1940-1950.; Stone buildings--Colorado--1940-1950.
    • [either 1940 and 1941]
    • Mill

    • View of a mill in Colorado. Electric wires from the powerplant connect to the building near the top level.
    • Electric lines--Colorado--1940-1950.; Mills--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [either 1940 or 1941]
    • Mining - crane and trucks

    • View of a sand and gravel mine operation in Colorado; a steam shovel loads a dump truck by a pit. Letters read: "Brannan Sand & Gravel."
    • Brannan Sand & Gravel Co. (Denver, Colo.)--1940-1950.; Sand and gravel plants--Colorado--1940-1950.; Dump trucks--Colorado--1940-1950.; Mining--Colorado--1940-1950.; Steam shovels--Colorado--1940-1950.
    • [between 1940 and 1950?]
    • Mine and mill complex

    • View of unidentified mine and mill buildings with tailings in Colorado.
    • Mine buildings--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [1940?]
    • CMA London office staff

    • Interior view of an office at the London Mine in (possibly) Alma, (Park County), Colorado; men and a woman work at desks with ink bottles, a pencil sharpener, and ledgers. Safe and adding machine read: "Charpiot Safe Co. Denver, Colo," and "Monroe."
    • Interiors--Colorado--1940-1950.; Mining--Colorado--1940-1950.; Offices--Colorado--1940-1950.
    • [between 1940 and 1950?]
    • CMA Veta Mines / clean-up

    • A man cleans metal pans in (probably) Colorado; he wears bib overalls and industrial gloves. A scale is on a table.
    • Interiors--Colorado--1940-1950.; Miners--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [between 1940 and 1950?]
    • CMA Veta Mines / clean-up room

    • Men work with a hydraulic ore processing machine in (probably) Colorado; water runs under the ball mill.
    • Employees--Colorado--1940-1950.; Interiors--Colorado--1940-1950.; Mining--Colorado--1940-1950.; Ore industry--Colorado--1940-1950.
    • [between 1940 and 1950?]
    • Stamp mill

    • Interior view of a stamp mill in Colorado.
    • Interiors--Colorado--1940-1950.; Mills--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [either 1940 or 1941]
    • Abandoned boiler

    • View of an abandoned brick set horizontal tubular boiler in Colorado. Lettering cast on the smoke doors reads: "Hendrie & Bolthoff Mfg & Sup'y Co. Denver, Colo. 1902".
    • Boilers--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [either 1940 or 1941]
    • Climax Molybdenum Company officials

    • Officials of Climax Molybdenum Mining Company look at a podium; W. J. Coulter (mine company manager) is second from left. A gavel is on the table.
    • Meetings--Colorado--1940-1950.; Mining--Colorado--1940-1950.; Coulter, W. J.
    • May 5, 1941
    • Mill equipment

    • View of an old concentration table at an unidentified, abandoned mill in Colorado.
    • Milling machinery--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [1940?]
    • Mill equipment

    • View of an old stamp battery at an unidentified, abandoned mill in Colorado.
    • Milling machinery--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [1940?]
    • Mine drilling

    • Interior view of a mine in (probably) Colorado; a man operates a pneumatic hammer.
    • Boring--Colorado--1940-1950.; Interiors--Colorado--1940-1950.; Miners--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [between 1940 and 1950?]
    • Mill equipment

    • At an unidentified mill in Colorado, name plates embossed on an old stamp battery read: "Griffith & Wedge Co., Zanesville, Ohio, U.S.A."
    • Milling machinery--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [1940?]
    • Mill equipment

    • View of the wheel to an old steam engine, ore crusher, or air compressor at an unidentified, abandoned mill in Colorado.
    • Milling machinery--Colorado--1940-1950.; Mining--Colorado--1940-1950.
    • [1940?]
    • Mill buildings

    • View of multi-level processing mills with gabled roofs, probably in Colorado. Shows tailings, barrels, piles of logs, a guard rail and a rocky hill. Cables hang from a roof.
    • Mills--Colorado--1940-1950.; Mining--Colorado--1940-1950.; Ore industry--Colorado--1940-1950.; Tailings embankments--Colorado--1940-1950.
    • [between 1940 and 1950?]
    • Mining - mills - interiors

    • Interior view of a mine in (probably) Colorado; a man is by a conveyor and coal. Letters on a steel beam read: "PRR63490."
    • Coal mining--Colorado--1940-1950.; Coal mining--Colorado--1940-1950.; Interiors--Colorado--1940-1950.; Miners--Colorado--1940-1950.
    • 1944

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