Show 43 more

 

• Thumbnail

  Title

  Description-Abstract

  Subject

  Date-Issued

• • 
    
    
  • Alma - Lincoln - flotation cells
  • 
    Interior view of flotation cells at the Alma Lincoln Mine mill in Idaho Springs (Clear Creek County), Colorado. Can reads: "Shawningan Carbide."
  • 
    Alma Lincoln Mine (Clear Creek County, Colo.)--1940-1950.; Idaho Springs (Colo.)--1940-1950.; Flotation--Colorado--Idaho Springs--1940-1950.; Interiors--Colorado--Idaho Springs--1940-1950.; Mills--Colorado--Idaho Springs--1940-1950.;...
  • 
    [between 1940 and 1950?]
• • 
    
    
  • Ophir flotation mill
  • 
    View of a flotation mill near Ophir, San Miguel County, Colorado.
  • 
    Ophir (Colo.)--1920-1930.; Flotation--Colorado--Ophir--1920-1930.; Mining--Colorado--Ophir--1920-1930.
  • 
    1929
• • 
    
    
  • Climax, Colo., Climax flotation machines
  • 
    Rows of flotation machines inside the Climax Molybdenum Company mine, Climax, Lake County, Colorado.
  • 
    Flotation--Colorado--Climax--1930-1940.; Climax (Colo.)--1930-1940.; Industry--Colorado--Climax--1930-1940.; Interiors--Colorado--Climax--1930-1940.; Machinery--Colorado--Climax--1930-1940.; Mining--Colorado--Climax--1930-1940.
  • 
    [1930?]
• • 
    
    
  • Climax, Colo., rear view of flotation machines showing motors and drives
  • 
    View from the back of flotation machines, with motors and drives, inside the Climax Molybdenum Company mine, Climax, Lake County, Colorado.
  • 
    Flotation--Colorado--Climax--1930-1940.; Climax (Colo.)--1930-1940.; Industry--Colorado--Climax--1930-1940.; Interiors--Colorado--Climax--1930-1940.; Machinery--Colorado--Climax--1930-1940.; Mining--Colorado--Climax--1930-1940.
  • 
    [1930?]
• • 
    
    
  • Climax, Colo., tex-rope drivers on rear of flotation machines no. 2 mill
  • 
    View from the back of flotation machines, with motors and drives, inside the Climax Molybdenum Company mine, no. 2 mill, Climax, Lake County, Colorado.
  • 
    Flotation--Colorado--Climax--1930-1940.; Climax (Colo.)--1930-1940.; Industry--Colorado--Climax--1930-1940.; Interiors--Colorado--Climax--1930-1940.; Milling machines--Colorado--Climax--1930-1940.; Mining--Colorado--Climax--1930-1940.
  • 
    [1930?]
• • 
    
    
  • Climax, Colo., flotation machines no. 2 mill unit
  • 
    Rows of flotation machines inside the Climax Molybdenum Company mine, mill no. 2, Climax, Lake County, Colorado.
  • 
    Flotation--Colorado--Climax--1930-1940.; Climax (Colo.)--1930-1940.; Industry--Colorado--Climax--1930-1940.; Interiors--Colorado--Climax--1930-1940.; Milling machines--Colorado--Climax--1930-1940.; Mining--Colorado--Climax--1930-1940.
  • 
    [1930?]
• • 
    
    
  • Climax, Colo., flotation machines
  • 
    Rows of flotation machines inside the Climax Molybdenum Company mine, Climax, Lake County, Colorado.
  • 
    Flotation--Colorado--Climax--1930-1940.; Climax (Colo.)--1930-1940.; Industry--Colorado--Climax--1930-1940.; Interiors--Colorado--Climax--1930-1940.; Machinery--Colorado--Climax--1930-1940.; Mining--Colorado--Climax--1930-1940.
  • 
    [1930?]
• • 
    
    
  • Climax, Colo., flotation machines
  • 
    Rows of flotation machines inside the Climax Molybdenum Company mine, Climax, Lake County, Colorado.
  • 
    Flotation--Colorado--Climax--1930-1940.; Climax (Colo.)--1930-1940.; Industry--Colorado--Climax--1930-1940.; Interiors--Colorado--Climax--1930-1940.; Machinery--Colorado--Climax--1930-1940.; Mining--Colorado--Climax--1930-1940.
  • 
    [1930?]
• • 
    
    
  • 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?]
• • 
    
    
  • 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?]
• • 
    
    
  • Rico Argentine, flotation cells
  • 
    View of mud covered flotation cells in an ore processing building at the Rico Argentine Mining Company Mine near Rico (Dolores County), Colorado. Shows belt driven machinery.
  • 
    Rico (Colo.)--1930-1950.; Rico Argentine Mining Company Mine (Dolores County, Colo.)--1930-1950.; Interiors--Colorado--Rico--1930-1950.; Machinery--Colorado--Rico--1930-1950.; Mining--Colorado--Rico--1930-1950.; Ore...
  • 
    [between 1930 and 1950?]
• • 
    
    
  • 225 ton tabling and flotation plant London Gold Mines Alma, Colo
  • 
    View of the London Gold Mines tabling and flotation plant near Alma (Park County), Colorado.
  • 
    Alma (Colo.)--1930-1940.; Mining--Colorado--Alma--1930-1940.; Ore industry--Colorado--Alma--1930-1940.
  • 
    1933
• • 
    
    
  • Climax, Colo., flotation machines no. 1 mill
  • 
    View inside the Climax Molybdenum Company mine, mill no. 1, with rows of flotation machines, Climax, Lake County, Colorado.
  • 
    Climax (Colo.)--1930-1940.; Industry--Colorado--Climax--1930-1940.; Interiors--Colorado--Climax--1930-1940.; Milling machines--Colorado--Climax--1930-1940.; Mining--Colorado--Climax--1930-1940.
  • 
    [1930?]
• • 
    
    
  • Flotation cells are monitored during skimming operation for molybdenum recovery.
  • 
    A worker monitors a row of "Denver Sub-A" flotation machines at the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
  • 
    Molybdenum--Colorado--Empire--1980-1990.; Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Interiors--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
  • 
    September 6, 1980
• • 
    
    
  • Flotation cells skim molybdenum
  • 
    A worker monitors a row of "Denver Sub-A" flotation machines at the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
  • 
    Molybdenum--Colorado--Empire--1980-1990.; Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Interiors--Colorado--Empire--1980-1990.; Mills--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
  • 
    September 6, 1980
• • 
    
    
  • The flotation circuits at the Henderson Mill are being installed and adjusted prior to initial startup.
  • 
    Installation of rows of Denver Sub-A flotation machines inside the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
  • 
    Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Interiors--Colorado--Empire--1980-1990.; Machinery--Colorado--Empire--1980-1990.; Mills--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
  • 
    September 6, 1980
• • 
    
    
  • Sts. John, ball mill and flotation vats
  • 
    View of the remnants of the ball mill for the Saints John Mine in the ghost town of Saints John (Saint John, Coleyville) in Summit County, Colorado. Shows an iron cylindrical enclosed flotation vat with a large gear, flywheel and cam shaft. A...
  • 
    Saints John (Colo.)--1960-1970.; Machinery--Colorado--Saints John--1960-1970.; Mills--Colorado--Saints John--1960-1970.; Ore industry--Colorado--Saints John--1960-1970.
  • 
    1969
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Flotation process
  •  
• • 
    
    
  • CMA Rico Argentine - mill
  • 
    View of flotation cells at the Argentine Mill in Rico (Dolores County), Colorado; belt drives power the ore processing machinery.
  • 
    Rico (Colo.)--1940-1950.; Rico Argentine Mining Company Mine (Dolores County, Colo.)--1940-1950.; Interiors--Colorado--Rico--1940-1950.; Mining--Colorado--Rico--1940-1950.; Ore industry--Colorado--Rico--1940-1950.
  • 
    [between 1940 and 1950?]
• • 
    
    
  • Colorado Fluorspar, Salida
  • 
    View of a processing plant or flotation mill identified as part of Colorado Fluorspar in Salida (Chaffee County), Colorado. The building is on a hillside and has tar paper siding, smokestacks and elevators. Shows a truck on a dirt road near the...
  • 
    Fluorspar industry--Colorado--Salida--1940-1950.; Salida (Colo.)--1940-1950.; Metal buildings--Colorado--Salida--1940-1950.; Mills--Colorado--Salida--1940-1950.; Mining--Colorado--Salida--1940-1950.; Ore industry--Colorado--Salida--1940-1950.
  • 
    [between 1940 and 1950?]
• • 
    
    
  • Colorado Fluorspar, Salida
  • 
    View of a processing plant or flotation mill identified as part of Colorado Fluorspar in Salida (Chaffee County), Colorado. The building is on a hillside and has tar paper siding, smokestacks and elevators. Shows tailings piles and a truck on a...
  • 
    Fluorspar industry--Colorado--Salida--1940-1950.; Salida (Colo.)--1940-1950.; Metal buildings--Colorado--Salida--1940-1950.; Mills--Colorado--Salida--1940-1950.; Mining--Colorado--Salida--1940-1950.; Ore industry--Colorado--Salida--1940-1950.
  • 
    [between 1940 and 1950?]
• • 
    
    
  • Sunnyside Mill - Eureka, Colorado
  • 
    View of the Sunnyside Mill, Eureka, San Juan County, Colorado; shows mining ore processing buildings, miners' houses, and the Animas River valley.
  • 
    Eureka (Colo.)--1900-1920.; Sunnyside Mine (San Juan County, Colo.)--1900-1920.; Mills--Colorado--Eureka--1900-1920.; Mining--Colorado--Eureka--1900-1920.; Valleys--Colorado--Eureka--1900-1920.
  • 
    [between 1900 and 1920?]
• • 
    
    
  • Climax, Colo., four cell rougher cleaner unit, mill no. 2
  • 
    Four cell flotation machine at the Climax Molybdenum Company mine, No. 2 mill, in Climax, Lake County, Colorado.
  • 
    Climax (Colo.)--1930-1940.; Industry--Colorado--Climax--1930-1940.; Interiors--Colorado--Climax--1930-1940.; Milling machines--Colorado--Climax--1930-1940.; Mining--Colorado--Climax--1930-1940.
  • 
    [1930?]
• • 
    
    
  • Reduction plant of Golden Cycle mining and milling corporation at west Colorado Springs known as "Golden Cycle Mill."
  • 
    Golden Cycle Mine and mill complex in Colorado Springs, Colorado shows: houses, reduction plant with smokestacks and tailings, Rampart Range.
  • 
    Colorado Springs (Colo.)--1930-1940.; Golden Cycle Mine (El Paso County, Colo.)--1930-1940.; Cities & towns--Colorado--Colorado Springs--1930-1940.; Industrial facilities--Colorado--Colorado Springs--1930-1940.; Mills--Colorado--Colorado...
  • 
    [1930?]
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Flotation process
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Mining. Flotation
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Everson, Mrs. Carrie Jane (Billings)
  •  
• • 
    
    
  • 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?]
• • 
    
    
  • 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?]
• • 
    
    
  • Trommal screan [i. e. Trommel screen] San Juan Metal Corp gold recovered by floatation [i. e. flotation]
  • 
    A man stands on top of a trommel screen in a creek bed near Telluride, San Miguel County, Colorado. The side of the machinery reads: "San Juan Metals Corp".
  • 
    Mining machinery--1930-1940.; Telluride (Colo.)--1930-1940.; Miners--1930-1940.; Mining--1930-1940.
  • 
    [between 1930 and 1940]
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Creede, Colorado. Business
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Denver. Business. Manufacturing
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Everson, Mrs. Carrie Jane (Billings)
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    inventions
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Rico, Colorado
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    London Butte gold mines company
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Yuba dam flats (Breckenridge district)
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Denver. Business. Tar
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Minerals engineering company
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Mines and mineral.resources Colorado
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Mines and mineral resources. Colorado
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Mines an mineral resources. Colorado
  •  
• • 
    
    
  • Western History Subject Index
  •  
  • 
    Mines and mineral resources. COLORADO
  •  
• • 
    
    
  • 1920 Corbett & Ballenger's 48th Annual Denver City Directory
  • 
    City directory of all residents and businesses in the Denver area in the year 1920.
  • 
    Denver (Colo.)--Directories.
  • 
    1920
• • 
    
    
  • 1923 Corbett & Ballenger's 51st Annual Denver City Directory
  • 
    City directory of all residents and businesses in the Denver area in the year 1923.
  • 
    Denver (Colo.)--Directories.
  • 
    1923
• • 
    
    
  • 1927 Denver Householders' Directory and Street and Avenue Guide v.3
  • 
    The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
  • 
    Denver (Colo.)--Directories.
  • 
    1927
• • 
    
    
  • 1929 Denver Householders' Directory and Street and Avenue Guide v.5
  • 
    The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
  • 
    Denver (Colo.)--Directories.
  • 
    1929
• • 
    
    
  • 1930 Denver Householders' Directory and Street and Avenue Guide v.6
  • 
    The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
  • 
    Denver (Colo.)--Directories.
  • 
    1930
• • 
    
    
  • 1931 Denver Householders' Directory and Street and Avenue Guide v.7
  • 
    The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
  • 
    Denver (Colo.)--Directories.
  • 
    1931
• • 
    
    
  • 1928 Denver Householders' Directory and Street and Avenue Guide v.4
  • 
    The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
  • 
    Denver (Colo.)--Directories.
  • 
    1928

• Select All Collections