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  Description-Abstract

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  Date-Issued

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  • London Mine
  • 
    View of London Butte Mine buildings, tailings, snow, and cars near Alma (Park County), Colorado.
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    Mine buildings--Colorado-- Alma--1920-1940.; Alma (Colo.)--1920-1940.; London Butte Mine (Park County, Colo.)--1920-1940.; Mining--Colorado--Alma--1920-1940.
  • 
    [between 1920 and 1940?]
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  • London Mine crew coming off shift
  • 
    London Butte Mine workers smile and pose with lunch boxes near Alma (Park County), Colorado. They ride on a funicular foot car.
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    Miners--Colorado-- Alma--1920-1940.; Alma (Colo.)--1920-1940.; London Butte Mine (Park County, Colo.)--1920-1940.; Cable railroads--Colorado--Alma--1920-1940.; Mining--Colorado--Alma--1920-1940.
  • 
    [between 1920 and 1940?]
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  • Veta Mines - flotation cells
  • 
    Interior view of flotation cells at the Smuggler Union Pandora (Veta Mines) ore processing facility in San Miguel County, Colorado. Shows slurry and belt drive agitators.
  • 
    Pandora (Colo.)--1930-1950.; Pandora Mill (San Miguel County, Colo.)--1930-1950.; Interiors--Colorado--Pandora--1930-1950.; Mills--Colorado--Pandora--1930-1950.; Mining--Colorado--Pandora--1930-1950.
  • 
    [between 1930 and 1950?]
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  • Denver Ordnance Plant, steam plant under construction
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    A crew of construction workers build the framework for the Steam Plant at the Denver Ordnance Plant (Remington Ordnance Plant, later the Denver Federal Center) in Lakewood (Jefferson County), Colorado. Three boilers and pipe systems are enclosed in...
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    Denver Ordnance Plant--Buildings--1940-1950.; Lakewood (Colo.)--1940-1950.; Building construction--Colorado--Lakewood--1940-1950.; Construction workers--Colorado--Lakewood--1940-1950.; Industrial facilities--Colorado--Lakewood--1940-1950.; Ordnance...
  • 
    [1941?]
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  • Camp Hale, construction
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    A man drives a Caterpillar machine with tracks, possibly a loader, for construction of buildings at Camp Hale (Eagle County), Colorado. Mountains are near the Pando valley.
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    Camp Hale (Colo.)--1940-1950.; Construction equipment--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Camp Hale, construction
  • 
    Men wear overalls or work clothes and pose beside metal pipes at a construction site at Camp Hale (Eagle County), Colorado. Shows a wrench and a mallet and exposed ceiling rafters.
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    Camp Hale (Colo.)--1940-1950.; Building construction--Colorado--Camp Hale--1940-1950.; Construction workers--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Sign at Camp Hale
  • 
    A wooden painted sign at Camp Hale (Eagle County), Colorado, shows a caricature painting of Adolf Hitler and reads: "We've Got a Date With This Sonofabitch, Let's Be On Time!"
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    Camp Hale (Colo.)--1940-1950.; Billboards--Colorado--Camp Hale--1940-1950.; Caricatures--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.; Hitler, Adolf, 1889-1945.
  • 
    [1942?]
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  • Camp Hale, construction
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    View of barracks (?) under construction at Camp Hale (Eagle County), Colorado. Workers stand in doorways; the frame, two-story building has a gable roof.
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    Camp Hale (Colo.)--1940-1950.; Barracks--Colorado--Camp Hale--1940-1950.; Building construction--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Camp Hale, construction
  • 
    View of a two-story building, probably barracks, during construction at Camp Hale (Eagle County), Colorado. The building has a gable roof, a balcony and clapboard siding. Wooden scaffolding and construction debris are nearby.
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    Camp Hale (Colo.)--1940-1950.; Barracks--Colorado--Camp Hale--1940-1950.; Building construction--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Camp Hale, construction
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    Construction workers wear overalls and lean over a wooden sawhorse in a building under construction at Camp Hale (Eagle County), Colorado. Doors are stacked against building supports and framed walls.
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    Camp Hale (Colo.)--1940-1950.; Building construction--Colorado--Camp Hale--1940-1950.; Construction workers--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Camp Hale, construction
  • 
    A man wears overalls and a hat and works on the foundation of a building at Camp Hale (Eagle County), Colorado. Shows wooden boards and poured concrete at the construction site.
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    Camp Hale (Colo.)--1940-1950.; Building construction--Colorado--Camp Hale--1940-1950.; Construction workers--Colorado--Camp Hale--1940-1950.; Foundations--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Camp Hale, construction
  • 
    A man is in a trench beside a metal pipe at a construction site at Camp Hale (Eagle County), Colorado. The man wears a badge and a holster that holds bullets and a handgun. Rocks and debris are piled on the sides of the trench.
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    Camp Hale (Colo.)--1940-1950.; Construction--Colorado--Camp Hale--1940-1950.; Guards--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Camp Hale, construction
  • 
    A man wears a welding mask and welds a metal I beam to probably a cable at a construction site at Camp Hale (Eagle County), Colorado. The man carries a wrench and works beside tanks, possibly boilers. Shows the metal frame of a roof.
  • 
    Camp Hale (Colo.)--1940-1950.; Construction--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.; Welding--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Camp Hale, construction
  • 
    Men wear overalls, work gloves and caps and stand beside a pipe threader at Camp Hale (Eagle County), Colorado. Shows sections of pipe on the ground, machinery and construction debris on the ground beside a building.
  • 
    Camp Hale (Colo.)--1940-1950.; Construction workers--Colorado--Camp Hale--1940-1950.; Construction--Colorado--Camp Hale--1940-1950.; Equipment--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Camp Hale, construction
  • 
    Men load wooden or metal frames in the back of a pickup truck at a construction site at Camp Hale (Eagle County), Colorado. Shows a frame doorway and nearby buildings under construction.
  • 
    Camp Hale (Colo.)--1940-1950.; Building construction--Colorado--Camp Hale--1940-1950.; Construction workers--Colorado--Camp Hale--1940-1950.; Lifting & carrying--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.;...
  • 
    [1942?]
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  • Camp Hale, construction
  • 
    A construction crane is beside a trench at Camp Hale (Eagle County), Colorado. The crane has a scoop attached to a cable. Men pose beside the crane and piles of rocks.
  • 
    Camp Hale (Colo.)--1940-1950.; Construction workers--Colorado--Camp Hale--1940-1950.; Construction--Colorado--Camp Hale--1940-1950.; Hoisting machinery--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Camp Hale, construction
  • 
    A scoop on a crane holds dirt above a construction site at Camp Hale (Eagle County), Colorado.
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    Camp Hale (Colo.)--1940-1950.; Construction--Colorado--Camp Hale--1940-1950.; Hoisting machinery--Colorado--Camp Hale--1940-1950.; Military facilities--Colorado--Camp Hale--1940-1950.
  • 
    [1942?]
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  • Flotation mill at Pandora
  • 
    View of the flotation mill at the Smuggler Union Pandora (Veta Mines) ore processing facility in San Miguel County, Colorado. Shows sheds and tailings.
  • 
    Pandora (Colo.)--1930-1950.; Pandora Mill (San Miguel County, Colo.)--1930-1950.; Mills--Colorado--Pandora--1930-1950.; Mining--Colorado--Pandora--1930-1950.
  • 
    [between 1930 and 1950?]
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  • Veta Mines - dumping ore tray
  • 
    Interior view at the Smuggler Union Pandora (Veta Mines) in San Miguel County, Colorado; a man dumps ore through a hole in the floor.
  • 
    Pandora (Colo.)--1940-1950.; Pandora Mill (San Miguel County, Colo.)--1940-1950.; Interiors--Colorado--Pandora--1940-1950.; Mills--Colorado--Pandora--1940-1950.; Miners--Colorado--Pandora--1940-1950.; Mining--Colorado--Pandora--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Veta Mines - flotation cells
  • 
    Interior view at the Smuggler Union Pandora (Veta Mines) in San Miguel County, Colorado; a man monitors ore processing machinery.
  • 
    Pandora (Colo.)--1940-1950.; Pandora Mill (San Miguel County, Colo.)--1940-1950.; Interiors--Colorado--Pandora--1940-1950.; Laborers--Colorado--Pandora--1940-1950.; Mills--Colorado--Pandora--1940-1950.; Mining--Colorado--Pandora--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Manion Placer
  • 
    View of a steam shovel and ore processing machinery with a conveyor elevator. Letters read "Manion Placer" and "Lorain."
  • 
    Mining machinery--1940-1950.; Conveying systems--1940-1950.; Hydraulic mining--1940-1950.; Steam shovels--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Manion Placer
  • 
    View of a steam shovel and ore processing machinery. Letters read "Manion Placer" and "Lorain 77."
  • 
    Mining machinery--1940-1950.; Hydraulic mining--1940-1950.; Steam shovels--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Veta Mines staff in office
  • 
    Men smile and pose in an office at the Smuggler Union Pandora (Veta Mines) in San Miguel County, Colorado. A pin-up girl calendar is on the wall.
  • 
    Pandora (Colo.)--1940-1950.; Pandora Mill (San Miguel County, Colo.)--1940-1950.; Interiors--Colorado--Pandora--1940-1950.; Mills--Colorado--Pandora--1940-1950.; Mining--Colorado--Pandora--1940-1950.; Offices--Colorado--Pandora--1940-1950.
  • 
    1940, November
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  • West Port[al] CD shanking steel - blacksmith shop
  • 
    Interior view of a machine shop at the West Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel) of the Colorado Big Thompson project in Grand County, Colorado. Men work in a corrugated steel shed.
  • 
    Alva B. Adams Tunnel (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Interiors--Colorado--Grand County--1940-1950.; Machine shops--Colorado--Grand County--1940-1950.
  • 
    [between 1940 and 1950?]
• • 
    
    
  • West Port[al] CD muck train coming out of tunnel
  • 
    Men stand by a muck train that emerges from the West Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel) of the Colorado Big Thompson project in Grand County, Colorado. Sign reads: "Positively No Admittance."
  • 
    Alva B. Adams Tunnel (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Cable railroads--Colorado--Grand County--1940-1950.; Construction workers--Colorado--Grand County--1940-1950.; Construction--Colorado--Grand County--1940-1950.; Hydraulic...
  • 
    [between 1940 and 1947?]
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  • West Port[al] CD cable car & electronics
  • 
    Men pose by cable driven cars inside the West Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel) of the Colorado Big Thompson project in Grand County, Colorado.
  • 
    Colorado-Big Thompson Project (U.S.)--People--1940-1950.; Alva B. Adams Tunnel (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Cable railroads--Colorado--Grand County--1940-1950.; Construction workers--Colorado--Grand County--1940-1950.;...
  • 
    [between 1940 and 1950?]
• • 
    
    
  • Manion Placer
  • 
    View of a steam shovel and ore processing machinery with a conveyor elevator.
  • 
    Conveying systems--1940-1950.; Hydraulic mining--1940-1950.; Mining machinery--1940-1950.; Steam shovels--1940-1950.
  • 
    [between 1940 and 1950?]
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  • West Port[al] CD timbering action
  • 
    Men examine metal shoring near the West Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel) of the Colorado Big Thompson project in Grand County, Colorado
  • 
    Alva B. Adams Tunnel (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Construction workers--Colorado--Grand County--1940-1950.; Hydraulic facilities--Colorado--Grand County--1940-1950.; Interiors--Colorado--Grand County--1940-1950.;...
  • 
    [between 1940 and 1950?]
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  • Stoffer, G.E. pulling trolley rope
  • 
    G.E. Stoffer pulls on the power cable arm of a Denver Tramway Corporation trolley car, in a Denver, Colorado, garage.
  • 
    Denver Tramway Corporation (Denver, Colo.)--1940-1950.; Garages--Colorado--Denver--1940-1950.; Interiors--Colorado--Denver--1940-1950.; Street railroads--Colorado--Denver--1940-1950.; Stoffer, G. E.
  • 
    [between 1940 and 1950?]
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  • Stoffer, G.E. inspecting relays on coach
  • 
    G.E. Stoffer examines electrical components of a Denver Tramway Corporation trolley car, in a Denver, Colorado garage. Logo reads: "DTC."
  • 
    Denver Tramway Corporation (Denver, Colo.)--1940-1950.; Garages--Colorado--Denver--1940-1950.; Interiors--Colorado--Denver--1940-1950.; Street railroads--Colorado--Denver--1940-1950.; Stoffer, G. E.
  • 
    [between 1940 and 1950?]
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  • Stoffer, G.E. standing at front door of coach
  • 
    G.E. Stoffer poses by a Denver Tramway Corporation bus, in a Denver, Colorado garage. Letters and destination sign read: "To Larimer St.," and "506."
  • 
    Denver Tramway Corporation (Denver, Colo.)--1940-1950.; Buses--Colorado--Denver--1940-1950.; Garages--Colorado--Denver--1940-1950.; Interiors--Colorado--Denver--1940-1950.; Stoffer, G. E.
  • 
    [between 1940 and 1950?]
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  • West Port[al] CD office man at office door
  • 
    Men smile and pose at night by a metal building and a sign: "Office Platt Rogers, Inc. Contractors - Continental Divide Tunnel at the West Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel) of the Colorado Big Thompson project in Grand...
  • 
    Alva B. Adams Tunnel (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Men--Colorado--Grand County--1940-1950.; Metal buildings--Colorado--Grand County--1940-1950.; Night--Colorado--Grand County--1940-1950.
  • 
    [between 1940 and 1947?]
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  • West Port[al] CD timbering - from top of tunnel
  • 
    Men work with metal shoring near the West Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel), part of the Colorado Big Thompson project, in Grand County, Colorado
  • 
    Colorado-Big Thompson Project (U.S.)--People--1940-1950.; Alva B. Adams Tunnel (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Construction--Colorado--Grand County--1940-1950.; Hydraulic facilities--Colorado--Grand County--1940-1950.;...
  • 
    [between 1940 and 1950?]
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  • West Port[al] CD hanging vent tube
  • 
    Men work near the West Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel) of the Colorado Big Thompson project in Grand County, Colorado. Shows metal shoring, a cable railroad car, and canvas ventilation tubing.
  • 
    Colorado-Big Thompson Project (U.S.)--People--1940-1950.; Grand County (Colo.)--1940-1950.; Construction workers--Colorado--Grand County--1940-1950.; Construction--Colorado--Grand County--1940-1950.; Hydraulic facilities--Colorado--Grand...
  • 
    [between 1940 and 1950?]
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  • West Port[al] CD Supt Kane, Walles, Morris, Robt.
  • 
    Men, possibly Walles Kane and Robert Morris, converse at a desk; one holds a pipe, the other wears a hard hat in an office at the West Portal of the Alva B. Adams Tunnel (Continental Divide Tunnel) of the Colorado Big Thompson project in Grand...
  • 
    Alva B. Adams Tunnel (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Conversation--Colorado--Grand County--1940-1950.; Interiors--Colorado--Grand County--1940-1950.; Men--Colorado--Grand County--1940-1950.; Offices--Colorado--Grand...
  • 
    [between 1940 and 1950?]
• • 
    
    
  • Stoffer, G.E. at trolley coach controls
  • 
    G.E. Stoffer poses in the driver's seat of a Denver Tramway Corporation trolley car in Denver, Colorado.
  • 
    Denver Tramway Corporation (Denver, Colo.)--1940-1950.; Interiors--Colorado--Denver--1940-1950.; Street railroads--Colorado--Denver--1940-1950.; Stoffer, G. E.
  • 
    [between 1940 and 1950?]
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  • Clear Creek - drilling in 1200 ft. pioneer bore - removing jock bits in foreground
  • 
    Men work with pipes, pneumatic tubing, and helmets with lanterns in a highway tunnel on Highway 6 in Jefferson County or Clear Creek County, Colorado.
  • 
    Construction workers--Colorado--1940-1950.; Interiors--Colorado--1940-1950.; Road construction--Colorado--1940-1950.; Tunnels--Colorado--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Slide Mine - G-D sharpener's furnace
  • 
    A man works with a stamp mill by a forge at the Slide Mine is probably Boulder County, Colorado. Embossed letters on the machinery read: "Gardner Denver."
  • 
    Boulder County (Colo.)--1940-1950.; Slide Mine (Boulder County, Colo.)--1940-1950.; Employees--Colorado--Boulder County--1940-1950.; Founding--Colorado--Boulder County--1940-1950.; Interiors--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Slide Mine - jumbo side, one man
  • 
    A man works in a mine tunnel with a pneumatic drill at probably the Slide Mine in Boulder County, Colorado. He wears a helmet with a lantern.
  • 
    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?]
• • 
    
    
  • Slide Mine - mucker front / bucket up
  • 
    A man works in a mine tunnel with machinery at probably the Slide Mine in Boulder County, Colorado.; he wears a helmet with lantern.
  • 
    Boulder County (Colo.)--1940-1950.; Slide Mine (Boulder County, Colo.)--1940-1950.; Interiors--Colorado--Boulder County--1940-1950.; Miners--Colorado--Boulder County--1940-1950.; Mining--Colorado--Boulder County--1940-1950.
  • 
    [between 1940 and 1950?]
• • 
    
    
  • Carlton Tunnel - Xmas party - Shoup & Beber at portal
  • 
    Men pose by the mouth of the Carlton Tunnel in Teller County, Colorado. Mine drainage pipes are by rail tracks; letters read: "1939-1941 Safety First - Carlton Tunnel." Pine boughs and a painted cross adorn the concrete entrance.
  • 
    Carlton Tunnel (Teller County, Colo.)--1940-1950.; Teller County (Colo.)--1940-1950.; Christmas decorations--Colorado--Teller County--1940-1950.; Mining--Colorado--Teller County--1940-1950.; Night--Colorado--Teller County--1940-1950.;...
  • 
    [between 1940 and 1950?]
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  • Carlton Tunnel - Xmas party - miners at portal
  • 
    Men laugh and smile by the mouth of the Carlton Tunnel in Teller County, Colorado. Mine drainage pipes, rail tracks, and stairs flank the crowd; outfits include suits, ties, sweaters, and fedora hats. Letters read: "1939-1941 Safety First - Carlton...
  • 
    Carlton Tunnel (Teller County, Colo.)--1940-1950.; Teller County (Colo.)--1940-1950.; Christmas decorations--Colorado--Teller County--1940-1950.; Mining--Colorado--Teller County--1940-1950.; Night--Colorado--Teller County--1940-1950.;...
  • 
    [between 1940 and 1950?]
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  • Carlton Tunnel - Xmas party - supts at portal
  • 
    Construction superintendents laugh and smile by the mouth of the Carlton Tunnel in Teller County, Colorado. Mine drainage pipes and rail tracks flank the men; one man is unusually tall, and another wears jodhpurs. Letters read: "1939-1941 Safety...
  • 
    Carlton Tunnel (Teller County, Colo.)--1940-1950.; Teller County (Colo.)--1940-1950.; Christmas decorations--Colorado--Teller County--1940-1950.; Men--Colorado--Teller County--1940-1950.; Mining--Colorado--Teller County--1940-1950.;...
  • 
    [between 1940 and 1950?]
• • 
    
    
  • Clear Creek - close up from ground shovel bucket dumping in 800ft bore
  • 
    A man works in a a highway tunnel on Highway 6 in Jefferson County or Clear Creek County, Colorado. Shows a steam shovel and a dump truck. Letters read: "Ed. H. Honnen Construction Co."
  • 
    Construction workers--Colorado--1940-1950.; Dump trucks--Colorado--1940-1950.; Excavation--Colorado--1940-1950.; Road construction--Colorado--1940-1950.; Steam shovels--Colorado--1940-1950.; Tunnels--Colorado--1940-1950.
  • 
    [between 1940 and 1950?]
• • 
    
    
  • Clear Creek / loading Pioneer Bore
  • 
    Men work in a a highway tunnel on Highway 6 in Jefferson County or Clear Creek County, Colorado; sticks of dynamite are in holes, and water covers the floor.
  • 
    Construction workers--Colorado--1940-1950.; Explosives--Colorado--1940-1950.; Road construction--Colorado--1940-1950.; Tunnels--Colorado--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Clear Creek / taking powder into tunnels - Pioneer
  • 
    A man carries a dynamite crate into a a highway tunnel on Highway 6 in Jefferson County or Clear Creek County, Colorado; drainage pipes and rail tracks line the bore.
  • 
    Clear Creek County (Colo.)--1940-1950.; Construction workers--Colorado--1940-1950.; Explosives--Colorado--1940-1950.; Road construction--Colorado--1940-1950.; Tunnels--Colorado--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Clear Creek / looking down canyon from big bore
  • 
    View of Clear Creek canyon in Clear Creek County or Jefferson County, Colorado; railroad tracks, sheds, and fuel tanks edge the water.
  • 
    Clear Creek (Clear Creek County, Colo.)--1940-1950.; Clear Creek Canyon (Colo.)--1940-1950.; Canyons--Colorado--1940-1950.; Streams--Colorado--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Clear Creek / wiring heading - Pioneer
  • 
    Men work in a a highway tunnel on Highway 6 in Jefferson County or Clear Creek County, Colorado; they attach fuses to dynamite, and water covers the floor.
  • 
    Clear Creek County (Colo.)--1940-1950.; Construction workers--Colorado--1940-1950.; Explosives--Colorado--1940-1950.; Interiors--Colorado--1940-1950.; Road construction--Colorado--1940-1950.; Tunnels--Colorado--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Carlton Tunnel / Shoup & Tanner - Shoup pointing to sign
  • 
    Men in hard hats pose in the Carlton Tunnel in Teller County, Colorado; sign reads: "Carlton Tunnel 5 Miles 513 Days." Chalk lines show proposed bore for the mine drainage project.
  • 
    Carlton Tunnel (Teller County, Colo.)--1940-1950.; Teller County (Colo.)--1940-1950.; Miners--Colorado--Teller County--1940-1950.; Mining--Colorado--Teller County--1940-1950.; Tunnels--Colorado--Teller County--1940-1950.
  • 
    [between 1940 and 1950?]
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  • Carlton Tunnel / Big J at 5 mi sign
  • 
    Men in hard hats pose in the Carlton Tunnel in Teller County, Colorado; sign reads: "Carlton Tunnel 5 Miles 513 Days." Chalk lines show proposed bore for the mine drainage project.
  • 
    Carlton Tunnel (Teller County, Colo.)--1940-1950.; Teller County (Colo.)--1940-1950.; Miners--Colorado--Teller County--1940-1950.; Mining--Colorado--Teller County--1940-1950.; Tunnels--Colorado--Teller County--1940-1950.
  • 
    [between 1940 and 1950?]

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