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  Date-Issued

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  • Stapleton International Airport
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    A guide to getting around Stapleton International Airport with guide to airline ticketing, concourses and concessions.
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    Airports--Colorado--Denver--Maps.
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    undated
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  • Denver Urban Renewal Authority (DURA) Relocation List
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    Indexed list of residents displaced during the development of the Auraria campus
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    Urban renewal--Colorado--Denver--History--Sources.
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    undated
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  • Citizens for Auraria: Vote 4 Auraria Nov. 4 Pamphlet
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    Pamphlet detailing the why Auraria is the best location for a new college center.
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    Urban renewal--Colorado--Denver--History--Sources.
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    undated
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  • Overland Cotton Mill
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    Exterior photograph of the Overland Cotton Mill building located in Denver, Colorado. Writing on smoke stack reads "Cobusco". The 1891 Overland Cotton Mill was Colorado's only successful cotton mill. At its peak, the mill's annual production...
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    Overland Cotton Mill (Denver, Colo.) Cotton mills--Colorado--Denver.; Ruby Hill (Denver, Colo.) Neighborhood); Marian-Wilkes Sheep Company (Denver, Colo.) Historic Buildings.; Historic preservation--Colorado--Denver.; Historic...
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    Undated
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  • Overland Cotton Mill
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    Exterior photograph of an upper floor window at the Overland Cotton Mill building located in Denver, Colorado. The 1891 Overland Cotton Mill was Colorado's only successful cotton mill. At its peak, the mill's annual production reached 12 million...
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    Overland Cotton Mill (Denver, Colo.) Cotton mills--Colorado--Denver.; Ruby Hill (Denver, Colo.) Neighborhood); Marian-Wilkes Sheep Company (Denver, Colo.) Historic Buildings.; Historic preservation--Colorado--Denver.; Historic...
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    Undated
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  • Overland Cotton Mill
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    Photograph of the hand carved wood banisters on the top of the stairs in the Overland Cotton Mill building located in Denver, Colorado. The 1891 Overland Cotton Mill was Colorado's only successful cotton mill. At its peak, the mill's annual...
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    Overland Cotton Mill (Denver, Colo.) Cotton mills--Colorado--Denver.; Ruby Hill (Denver, Colo.) Neighborhood); Marian-Wilkes Sheep Company (Denver, Colo.) Historic Buildings.; Historic preservation--Colorado--Denver.; Historic...
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    Undated
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  • Big 5 mill in Idaho Springs
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    View of the Big Five Mill in Idaho Springs (Clear Creek County), Colorado.
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    Idaho Springs (Colo.)--1940-1950.; Mills--Colorado--Idaho Springs--1940-1950.; Mining--Colorado--Idaho Springs--1940-1950.
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    Summer, 1942
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  • Nevadaville from "Pozo" dump upper part of Nevadaville
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    Snowy view of Nevadaville, Gilpin County, Colorado, shows houses on the hill northwest of town, power poles and the Pozo Mill.
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    Nevadaville (Colo.)--1930-1940.; Mining--Colorado--Nevadaville--1930-1940.
  • 
    Spring 1938
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  • Nevadaville
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    Snowy view of Nevadaville, Gilpin County, Colorado, shows scattered houses and Pozo Mill mining facilities.
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    Nevadaville (Colo.)--1930-1940.; Mining--Colorado--Nevadaville--1930-1940.
  • 
    Spring 1938
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  • Dyersville, Colorado
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    View of the ruins of the mill in the ghost town of Dyersville, Colorado, in Summit County. Piles of boards and debris litter the foreground. Evergreen forest in background.
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    Dyersville (Colo.)--1960-1970.; Abandoned buildings--Colorado--Dyersville--1960-1970.
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    September, 1961
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  • Ruined mill - Dyersville
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    Wood remnants of a former mill lie in a heap in the ghost town of Dyersville, Colorado in Summit County. An evergreen forest is in the background.
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    Dyersville (Colo.)--1960-1970.
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    September, 1961
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  • Summitville, Colo.
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    View shows Summitville (Rio Grande County), Colorado, South Mountain, and mines. Hand written notes on front of image point to: "Iowa (mine), Winchester (mine), Annie open cut (mine), French (mine), Chandler (mine), Mill, Gauge boarding house,...
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    Mine buildings--Colorado--Summitville--1930-1940.; South Mountain (Rio Grande County, Colo.)--1930-1940.; Summitville (Colo.)--1930-1940.; Mining--Colorado--Summitville--1930-1940.
  • 
    September, 1935
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  • The Pioneer Quartz Mill, first to the Hills, a pulverizer
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    Men pose near an ore pulverizer at the Pioneer Quartz mill, South Dakota. A denuded hill is in the background; cut lumber is near the machine.
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    Lawrence County (S.D.)--1870-1880.; Milling machines--South Dakota--Lawrence County--1870-1880.; Mills--South Dakota--Lawrence County--1870-1880.; Mining--South Dakota--Lawrence County--1870-1880.
  • 
    September, 1876
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  • Flotation cells are monitored during skimming operation for molybdenum recovery.
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    A worker monitors a row of "Denver Sub-A" flotation machines at the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
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    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.
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    September 6, 1980
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  • Ore cars automatically unload through dump-bottoms into the primary crusher at the Henderson Mill.
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    Workers inspect the ore cars at the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
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    Mine railroads--Cars--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
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  • Flotation cells skim molybdenum
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    A worker monitors a row of "Denver Sub-A" flotation machines at the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
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    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.
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    September 6, 1980
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  • Henderson's modern mill control room monitors every vital function in the milling process.
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    Workers in the control room at the Henderson Mine and mill in Empire, Clear Creek County, Colorado shows: telephones, desk and control panels.
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    Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Control rooms--Colorado--Empire--1980-1990.; Interiors--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
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    September 6, 1980
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  • The primary crusher will eventually sit here, crushing ore to five-inch size before it passes to the next step, the ball mills.
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    Construction site of the primary crusher pit at the Henderson Mine and mill in Empire, Clear Creek County, Colorado. Shows: dump trucks, bulldozers, and a round foundation.
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    Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Excavation--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
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    September 6, 1980
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  • These huge discs are filters used in the milling circuit for molybdenum at the Henderson mill.
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    A worker tends a 6-disc filter machine at the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
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    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.
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    September 6, 1980
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  • The primary crusher pit begins to take shape.
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    Construction site of the primary crusher pit at the Henderson Mine and mill in Empire, Clear Creek County, Colorado. Shows: trucks, bulldozer, and a round foundation.
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    Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Digging--Colorado--Empire--1980-1990.; Excavation--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
  • 
    September 6, 1980
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  • Two regrind mills are set in place at this stage of the Henderson Mill
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    Construction inside the Henderson Mine and mill, Empire, Clear Creek County, Colorado. Shows regrind mills with support structures.
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    Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Construction--Colorado--Empire--1980-1990.; Interiors--Colorado--Empire--1980-1990.; Mills--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
  • 
    September 6, 1980
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  • A pit is carved out to house the primary crusher at the Henderson Mill.
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    Construction site of the primary crusher pit at the Henderson Mine and mill, Empire, Clear Creek County, Colorado. Shows: cars, trucks, and a round foundation.
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    Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Excavation--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
  • 
    September 6, 1980
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  • The primary crusher control room at the Henderson Mill monitors crusher functions as well as electrical circuits for the ore haulage system.
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    Mill worker seated at the control room panel in the Henderson Mine and mill, Empire, Clear Creek County, Colorado.
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    Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Control rooms--Colorado--Empire--1980-1990.; Interiors--Colorado--Empire--1980-1990.; Mills--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
  • 
    September 6, 1980
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  • Over fifty percent completed with all four regrind mills in place and one of three ball mills visible, upper left.
  • 
    Regrind mills and ball mill with support structures 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
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  • The Henderson Mill, shown in early stages of construction.
  • 
    Construction inside the Henderson Mine and mill in Empire, Clear Creek County, Colorado. Shows cement foundation and supports.
  • 
    Empire (Colo.)--1980-1990.; Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Construction--Colorado--Empire--1980-1990.; Interiors--Colorado--Empire--1980-1990.; Mills--Colorado--Empire--1980-1990.; Mining--Colorado--Empire--1980-1990.
  • 
    September 6, 1980
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  • Molybdenum concentrate is packed in barrels for transport to company-owned refineries in Fort Madison, Iowa or Langeloth, Pennsylvania.
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    Workers prepare barrels for shipping on a freight truck, "NPT 668", at the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
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    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.; Shipping--Colorado--Empire--1980-1990.
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    September 6, 1980
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  • Molybdenum concentrate is packed in barrels for transport to company-owned refineries in Fort Madison, Iowa or Langeloth, Pennsylvania.
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    A worker, in an apron, hard hat and gas mask, prepares barrels for shipping at the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
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    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.; Safety...
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    September 6, 1980
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  • 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.
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    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
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  • Workers close covers on a bulk railroad car full of moly.
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    Workers prepare a railroad car for transporting molybdenum at the Henderson Mine and mill in Empire, Clear Creek County, Colorado.
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    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.; Railroad freight...
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    September 6, 1980
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  • The railhead at Kremmling, Colorado enables bulk loading of molybdenum onto railroad cars.
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    Building and railroad tracks in Kremmling, Grand County, Colorado owned by the Henderson Mine and mill in Empire, Colorado.
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    Henderson Mine (Clear Creek County, Colo.)--1980-1990.; Kremmling (Colo.)--1980-1990.; Buildings--Colorado--Kremmling--1980-1990.; Mining--Colorado--Kremmling--1980-1990.
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    September 6, 1980
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  • View of old "stamp mill" used for crushing ore
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    Smitty poses near abandoned stamp mill machinery that includes stamps and a flywheel near Trout Creek Pass, Chaffee County, Colorado. The abandoned Colorado and Southern (C&S) grade, Mount Princeton, and Mount Harvard are in the distance.
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    Chaffee County (Colo.)--1940-1950.; Machinery--Colorado--Chaffee County--1940-1950.; Milling machines--Colorado--Chaffee County--1940-1950.; Mining--Colorado--Chaffee County--1940-1950.; Ruins--Colorado--Chaffee County--1940-1950.; Smitty.
  • 
    September 27, 1941
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  • Mill at We Got 'Em mine view from the West
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    View of the mill at the We Got 'Em Mine near Silver Creek, Gilpin County, Colorado.
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    Gilpin County (Colo.)--1920-1930.; We Got 'Em Mine (Gilpin County, Colo.)--1920-1930.; Mills--Colorado--Gilpin County--1930-1940.; Mining--Colorado--Gilpin County--1930-1940.
  • 
    September 22, 1936
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  • Summitville, South Mountain in background
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    View of the Summitville mining district offices and living quarters; reopened gold, silver and copper mines, Rio Grande County, Colorado; South Mountain in distance; mill on left, in ruin, after a snowslide.
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    Summitville (Colo.)--1960-1970.; Abandoned buildings--Colorado--Summitville--1960-1970.; Avalanches--Colorado--Summitville--1960-1970.; Dwellings--Colorado--Summitville--1960-1970.; Mining--Colorado--Summitville--1960-1970.
  • 
    September 1960
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  • Pagosa Lbr. Co. Plainer & Sawmill
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    View of the Pagosa Lumber Company in Pagosa Springs, Colorado in Archuleta County. The mill consists of several buildings situated around railroad tracks. Puffs of smoke rise out of some of the smokestacks of the mill. Piles of lumber are next...
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    Pagosa Springs (Colo.)--1910-1920.; Lumber industry--Colorado--Pagosa Springs--1910-1920.; Mills--Colorado--Pagosa Springs--1910-1920.; Pagosa Lumber Company.
  • 
    September 10, 1915
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  • Independence Mine and Mill, Cripple Creek Dist.
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    View of the Independence Mine and Mill, Victor (Teller County), Colorado. The town of Independence is in the distance.
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    Mine buildings--Colorado--Victor--1910-1920.; Independence (Teller County, Colo.)--1910-1920.; Stratton Independence Mine (Teller County, Colo.)--1910-1920.; Victor (Colo.)--1910-1920.; Mills--Colorado--Victor--1910-1920.;...
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    October 6, 1910
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  • Records of the Auraria town company, from October 1858 to March 1860
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    A bound and typed copy of the Auraria Town Company's records from October 1858 to March 1860. Includes minutes, constitution and by-laws.
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    Denver (Colo.)--Politics and government--History.
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    October 1858 - March 1860
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  • Mill building at Pandora Basin above Telluride, Colorado view from southeast
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    View of a gold mine ore processing facility near Telluride, San Miguel County, Colorado; shows metal buildings, tanks, cribbing, a jeep, a evaporative (swamp) cooler, and chain link fencing.
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    Telluride (Colo.)--1980-1990.; Mills--Colorado--Telluride--1980-1990.; Mining--Colorado--Telluride--1980-1990.
  • 
    November 5, 1982
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  • Mill at Pandora Basin above Telluride, Colorado view from west
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    View of a gold mining ore processing facility near Telluride, San Miguel County, Colorado; shows metal buildings, elevators, a jeep, an automobile, and a bus.
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    Telluride (Colo.)--1980-1990.; Mills--Colorado--Telluride--1980-1990.; Mining--Colorado--Telluride--1980-1990.
  • 
    November 5, 1982
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  • We-got-em mill from south-west
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    Men and women stand outside of the We-got-em mill building, Gilpin County, Colorado. It is a multi-tier, multi-gable building built on the side of a hill having tar paper siding. A sign reads: "We-Got-Em Mill, Gilpin Co Gold Mining Corp."
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    Gilpin County (Colo.)--1930-1940.; We-Got-Em Mine (Gilpin County, Colo.)--1930-1940.; Mills--Colorado--Gilpin County--1930-1940.; Mining--Colorado--Gilpin County--1930-1940.; Women--Colorado--Gilpin County--1930-1940.
  • 
    May 31, 1936
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  • Tunnel boarding houses
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    View of the boardinghouses and mill at the Revenue Tunnel Mine near Sneffels (Ouray County), Colorado. Snow covers the ground.
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    Revenue Mine (Ouray County, Colo.)--1890-1900.; Sneffels (Colo.)--1890-1900.; Lodging houses--Colorado--Sneffels--1890-1900.; Mills--Colorado--Sneffels--1890-1900.; Mining--Colorado--Sneffels--1890-1900.
  • 
    March, 1897
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  • Wilfley tables Green Mill
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    Interior view of Green Mill, in (probably) Colorado; shows a man inspecting Wilfley type concentrating tables, belts and pulleys.
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    Interiors--Colorado--1890-1900.; Milling machines--Colorado--1890-1900.; Mills--Colorado--1890-1900.; Mining--Colorado--1890-1900.
  • 
    March 1899
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  • John M Dumont built this house for the Boston Mine
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    This shingle sided structure in North Empire, Clear Creek County, Colorado, has one side of its gable roof built into the hillside; dormers are at ground level. John Dumont built the structure, used as a dormitory for employees of the Boston Mine...
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    North Empire (Colo.)--1960-1970.; Abandoned buildings--Colorado--North Empire--1960-1970.; Lodging houses--Colorado--North Empire--1960-1970.; Dumont, John M.
  • 
    June, 1960
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  • A wind and snow-battered mill in Waldorf, 11,666 feet above sea level.
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    Waldorf Mine and mill, Clear Creek County, Colorado shows: dilapidated mill building and wheel.
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    Mine buildings--Colorado--Clear Creek County--1950-1960.; Clear Creek County (Colo.)--1950-1960.; Waldorf Mine (Clear Creek County, Colo.)--1950-1960.; Mining--Colorado--Clear Creek County--1950-1960.; Ruins--Colorado--Clear Creek County--1950-1960.
  • 
    June 3, 1957
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  • Buildings at Waldorf mine from the west
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    View of Waldorf Mine and mill, Waldorf, Clear Creek County, Colorado; shows Argentine Central Railway narrow gauge tracks, switches, water tower and flatbed cars.
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    Argentine Central Railway Company--1900-1910.; Waldorf (Colo.)--1900-1910.; Railroads--Colorado--Waldorf--1900-1910.
  • 
    June 21, 1908
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  • Keystone Mill at Sandy
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    View of mining processing facilities in (possibly) Clark County, Nevada; shows tin buildings with a smokestack, a water tank, a team of horses, and a stream, desert, and mountains.
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    Clark County (Nev.)--1900-1910.; Horse teams--Nevada--Clark County--1900-1910.; Mills--Nevada--Clark County--1900-1910.; Mining--Nevada--Clark County--1900-1910.
  • 
    June 1902
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  • Revenue tunnel and mills of the Caroline and Glacier mining companies. Ouray county, Colo.
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    Overview of the Caroline and Glacier Co. mill buildings, smokestacks, roads, horse drawn wagons, and river at the base of mountains, Ouray County, Colorado.
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    Ouray County (Colo.)--1890-1900.; Mining--Colorado--Ouray County--1890-1900.
  • 
    June 1897
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  • Rabbles at roaster exit
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    View of the rabbles as they rake crushed ore near the end of the roasting furnace at the Golden Cycle Mill in El Paso County, Colorado.
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    Golden Cycle Corporation--1930-1940.; Interiors--Colorado--El Paso County--1930-1940.; Mills--Colorado--El Paso County--1930-1940.; Mining--Colorado--El Paso County--1930-1940.; Smelters--Colorado--El Paso County--1930-1940.
  • 
    July, [1932]
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  • Remains of old Summitville, Colo.
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    View shows dilapidated and fallen wooden buildings at an area called Windy Point, ("the winter winds have earned this turn in the road its name,") in old Summitville (Rio Grande County), Colorado. Numbers on print indicate: "1. The remains of the...
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    Summitville (Colo.)--1920-1930.; Abandoned buildings--Colorado--Summitville--1920-1930.; Mining--Colorado--Summitville--1920-1930.
  • 
    July, 1928
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  • Ball mill
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    View of a ball mill and hopper at the Golden Cycle Mill in El Paso County, Colorado.
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    Golden Cycle Corporation--1930-1940.; El Paso County (Colo.)--1930-1940.; Interiors--Colorado--El Paso County--1930-1940.; Milling machines--Colorado--El Paso County--1930-1940.; Mills--Colorado--El Paso County--1930-1940.; Mining--Colorado--El...
  • 
    July [1932]
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  • Climax, Colorado
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    View of the construction of the molybdenum mine mill and trestle, Climax, (11,320 feet) Fremont Pass, Continental Divide, Lake County, Colorado; shows scaffolding on the mill, scattered lumber, and foundation forms set for the ore cart trestle;...
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    Climax (Colo.)--1930-1940.; Mills--Colorado--Climax--1930-1940.; Mining--Colorado--Climax--1930-1940.
  • 
    July 9, 1930

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