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  • Mining Index to Hollister, Henderson and Canfield Histories
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    Mining index to Henderson, Hollister, and Canfield mining histories. Names of mines, mining companies, mining districts, lodes, veins, claims, and tunnels are indexed with page number.
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    Mines and mineral industries--Colorado--Directories.; Mines and mineral resources--Colorado--Directories.;
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    1995
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  • Consolidated Stanley Mining Co.
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    A view of mining buildings of the Consolidated Stanley Mining Company in Clear Creek County, Colorado. The buildings sit in a valley below tree covered hills. A sign on a building reads: "Consolidated Stanley M. Co." and painted on side of another...
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    Consolidated Stanley Mining Company (Colo.)--1890-1910.; Mine buildings--Colorado--Clear Creek County--1890-1910.; Clear Creek County (Colo.)--1890-1910.; Mining--Colorado--Clear Creek County--1890-1910.
  • 
    [between 1890 and 1910]
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  • Surface equipment of the North Lily Mining Co., a subsidiary of the International Smelting Co. in the Tintic Mining District, Utah
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    View shows wooden mining buildings, headframe, residence, and automobiles at the North Lily Mining Company, Utah.
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    Tintic Mining District--1920-1940.; North Lily Shaft (Utah County, Utah)--1920-1940.; Utah--1920-1940.; Mining--Utah--1920-1940.
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    [between 1920 and 1940?]
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  • Central City, Colorado
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    academy in the right background.; The St. Aloysius Academy, a Catholic boarding school, stands in the right background on Gunnell Hill in Central City, Colorado. A large mine shafthouse of the School Hill Mining Company stands on the same hill in...
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    Central City (Colo.)--1900-1920.; Church schools--Colorado--Central City--1900-1920.; Houses--Colorado--Central City--1900-1920.; Mining--Colorado--Central City--1900-1920.
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    [between 1900 and 1920?]
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  • Colo. Spgs. Bd. of Trade (Mining Stock Exchange) ran a special excursion to Pueblo at the time of the opening of their exchange
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    View of Pueblo Mining Stock Exchange building, Pueblo, Pueblo County, Colorado, with members of Colorado Springs Board of Trade and Mining Exchange posed in front of and on balcony; members are on an excursion trip for the Exchange's opening; men...
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    Pueblo (Colo.)--1890-1910.; Stock exchanges--Colorado--Pueblo--1890-1910.
  • 
    between 1895 to 1905
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  • Placer mining near Russel [sic], La Veta Pass
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    Men in suits, one woman and workmen stand on top of, in windows and beside a Colorado Gold Dredging Company hydraulic placer gold mining dredge near Russell (Costilla County), Veta Pass (La Veta Pass), Colorado. Shows an American flag on a flagpole.
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    Russell (Colo.)--1900-1910.; Dredges--American--Colorado--Russell--1900-1910.; Gold mining--Colorado--Russell--1900-1910.; Hydraulic mining--Colorado--Russell--1900-1910.
  • 
    [between 1900 and 1910?]
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  • National Mining and Industrial Exposition
  • 
    View of The National Mining and Industrial Exposition complex, which opened on August 1, 1882, at the corner of South Broadway and Exposition Avenue in Denver, Colorado. The multi-story building complex is comprised of towers with belvederes,...
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    National Mining and Industrial Exposition (1882 : Denver, Colo.)--Buildings.; Denver (Colo.)--1880-1890.; Exhibition buildings--Colorado--Denver--1880-1890.; Mining--Colorado--Denver--1880-1890.
  • 
    [1882?]
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  • Mining camp
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    A view of an unidentified mining town, possibly in Colorado. Shows wood mining buildings, dirt roads and residences.
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    Mine buildings--Colorado--1890-1910.; Mining camps--Colorado--1890-1910.; Houses--Colorado--1890-1910.; Mining--Colorado--1890-1910.
  • 
    [between 1890 and 1910]
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  • Placer mining
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    A view of a placer mining operation possibly in Colorado. Workers use placer mining machinery.
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    Hydraulic mining--1890-1910.; Miners--1890-1910.; Mining--1890-1910.
  • 
    [between 1890 and 1910]
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  • Platoro, Colo.
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    Scattered log and tent structures, many under construction, make up the gold mining town of Platoro in the Platoro - Gilmore Mining District, Conejos County, Colorado; shows people in front of residences and stores along the wide center street.
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    Denver and Rio Grande Railroad Company--1910-1920.; Platoro (Colo.)--1910-1920.; Log buildings--Colorado--Platoro--1910-1920.; Tents--Colorado--Platoro--1910-1920.
  • 
    May 31, 1913
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  • Bingham Metals Mining Co., in the famous Bingham district of Utah
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    View shows wooden mining buildings of the Bingham Metals Mining Company perched on a steep snow covered mountain slope, Utah.
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    Bingham Metals Mining Company--1920-1940.; Mine buildings--Utah--1920-1940.; Utah--1920-1940.; Mining--Utah--1920-1940.
  • 
    [between 1920 and 1940?]
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  • Mining camp, west of Eldora
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    View of the Happy Valley Placer Co. mining camp in the Grand Island Mining District, Boulder County, Colorado with tents and a buggy. John H. Kemp leans on the fence to the left; Engineer August Mathez stands with a transit instrument and tripod...
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    Happy Valley Placer Company (Colo.)--Facilities--1890-1900.; Mining camps--Colorado--Boulder County--1890-1900.; Boulder (Colo.)--1890-1900.; Mining--Colorado--Boulder County--1890-1900.; Tents--Colorado--Boulder County--1890-1900.; Kemp, John H.;...
  • 
    Summer 1892
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  • Gold exhibit at their office, consisting of specimens of native gold
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    View of gold ingots in a metal cage, some from mines of the Ibex and Antioch Mining Companies of Leadville, Colorado.
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    Antioch Mining Company (Leadville, Colo.)--Products--1880-1900.; Ibex Mining Company (Leadville, Colo.)--Products--1880-1900.; Leadville (Colo.)--1880-1900.; Gold--Colorado--Leadville--1880-1900.; Mining--Colorado--Leadville--1880-1900.
  • 
    [between 1880 and 1900?]
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  • Gold exhibit at their office, consisting of specimens of native gold
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    View of gold ingots, some from mines of the Ibex and Antioch Mining Companies of Leadville, Colorado.
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    Antioch Mining Company (Leadville, Colo.)--Products--1880-1900.; Ibex Mining Company (Leadville, Colo.)--Products--1880-1900.; Leadville (Colo.)--1880-1900.; Gold--Colorado--Leadville--1880-1900.; Mining--Colorado--Leadville--1880-1900.
  • 
    [between 1880 and 1900?]
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  • Concentrating mill of the Sunnyside Mining & Milling Co. a subsiduary [sic] of the U. S. Smelting Refining & Mining Co. at Eureka, Colo
  • 
    View of the Sunnyside Mining & Milling Company, subsidiary of the United States Refining & Mining Company, at Eureka, San Juan County, Colorado; shows mine processing sheds on a hillside, with water towers, smokestacks, and tailings. Houses are by...
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    Mine buildings--Colorado--Eureka--1920-1930.; Eureka (Colo.)--1920-1930.; Mills--Colorado--Eureka--1920-1930.; Mining--Colorado--Eureka--1920-1930.
  • 
    1929
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  • Concentrating mill of the Sunnyside Mining & Milling Co. a subsiduary [sic] of the U. S. Smelting Refining & Mining Co. at Eureka, Colo
  • 
    View of the Sunnyside Mining & Milling Company, subsidiary of the United States Refining & Mining Company, at Eureka, San Juan County, Colorado; shows mine processing sheds on a hillside, with water towers, smokestacks, and tailings. Houses are by...
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    Mine buildings--Colorado--Eureka--1920-1930.; Eureka (Colo.)--1920-1930.; Mills--Colorado--Eureka--1920-1930.; Mining--Colorado--Eureka--1920-1930.
  • 
    1929
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  • Balanced incline
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    View of a wooden balanced incline used for gold mining at the Illinois Mine in the Pahranagat Mining District, (Lincoln County) Nevada. An ore car is on parallel tracks connected to a pulley wheel at the top of tracks. Rocks, trees and ore piles...
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    Illinois Mine (Lincoln County, Nev.)--1870-1880.; Lincoln County (Nev.)--1870-1880.; Pahranagat Mining District (Nev.)--1870-1880.; Expeditions & surveys--Nevada--Lincoln County--1870-1880.; Gold mining--Nevada--Lincoln County--1870-1880.; Inclined...
  • 
    [1871]
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  • National Mining Exposition
  • 
    The National Mining and Industrial Exposition opened on August 1, 1882, at the corner of South Broadway and Exposition Avenue in Denver, Colorado. Displays inside the complex exhibited mining and industrial equipment and resources from 1882-1884;...
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    Denver (Colo.)--1880-1890.; Exhibition buildings--Colorado--Denver--1880-1890.; Mining--Colorado--Denver--1880-1890.; National Mining and Industrial Exposition (1882 : Denver, Colo.)
  • 
    [1882?]
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  • National Mining Hall of Fame and Museum, Leadville, Colo.
  • 
    View of the National Mining Hall of Fame and Museum located in the former Lake County High School, 120 West 9th Street, Leadville, Colo. Built in 1900, the two-story brick structure has ornate pedimented dormers with urn finials and corbeled...
  • 
    National Mining Hall of Fame and Museum (Leadville, Colo.)--1980-1990.; High school buildings--Colorado--Leadville--1980-1990.; Silver mines and mining--Museums--Colorado--Leadville--1980-1990.; Leadville (Colo.)--1980-1990.; National Mining Hall...
  • 
    1989
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  • The Colo. Gold Dredging Co. on the D.& R.G.R.R. at Russell, Colo.
  • 
    Men in suits, one woman and workmen stand on top of and beside a Colorado Gold Dredging Company hydraulic placer gold mining dredge near Russell, Veta Pass (La Veta Pass), Colorado. Shows an American flag on a flagpole.
  • 
    Russell (Colo.)--1900-1910.; Dredges--American--Colorado--Russell--1900-1910.; Gold mining--Colorado--Russell--1900-1910.; Hydraulic mining--Colorado--Russell--1900-1910.
  • 
    [between 1900 and 1910?]
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  • The Colo. Gold Dredging Co. on the D.& R.G.R.R. at Russell Colo.
  • 
    View of workmen on a Colorado Gold Dredging Company hydraulic placer gold mining dredge near Russell (Costilla County) Veta Pass (La Veta Pass), Colorado. Shows men in suits near workmen, construction tools, barrels, railroad ties and planks.
  • 
    Russell (Colo.)--1900-1910.; Dredges--American--Colorado--Russell--1900-1910.; Gold mining--Colorado--Russell--1900-1910.; Hydraulic mining--Colorado--Russell--1900-1910.
  • 
    [between 1900 and 1910?]
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  • Platoro Mining District
  • 
    Scattered log and tent structures comprise the gold mining town of Platoro in the Platoro - Gilmore Mining District (Conejos County), Colorado; shows people in front of residences and stores along the wide center street.
  • 
    Platoro (Colo.)--1910-1920.; Log buildings--Colorado--Platoro--1910-1920.; Mining--Colorado--Platoro--1910-1920.; Tents--Colorado--Platoro--1910-1920.
  • 
    [between 1910 and 1920?]
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  • Portland Mine
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    A view of the Portland gold mine near Victor (Teller county), Colorado. Shows mining buildings and equipment and piles of tailings. Painted on the roof of one small shack is "P. G. M. Co. office".
  • 
    Mine buildings--Colorado--Victor--1890-1910.; Portland Mine (Teller County, Colo.)--1890-1910.; Victor (Colo.)--1890-1910.; Gold mining--Colorado--Victor--1890-1910.; Mining--Colorado--Victor--1890-1910.
  • 
    [between 1890 and 1910]
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  • Summitville, South Mountain in rear; mill on left hit by slide, present mining office in rear
  • 
    View of the Summitville mining district offices, Rio Grande County, Colorado, once a gold mining district; later reopened for copper mining. South Mountain in distance; mill on left ruined by a snowslide.
  • 
    Summitville (Colo.)--1960-1970.; Abandoned buildings--Colorado--Summitville--1960-1970.; Avalanches--Colorado--Summitville--1960-1970.; Mining--Colorado--Summitville--1960-1970.
  • 
    1960
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  • Notice of location of a quartz claim
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    Reproduction shows a hand-written mining claim for the Bunker Hill Lode, on Milo Creek, in the Yreka Mining District, Shoshone County, Idaho, signed by Philip O'Rourke and Whitney [?] N. S. Kellogg.
  • 
    Mining claims--Idaho Territory--Shoshone County--1880-1890.; Idaho Territory--1880-1890.; Shoshone County (Idaho Territory)--1880-1890.; Mining--Idaho Territory--Shoshone County--1880-1890.
  • 
    September, 1885
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  • Russell Gulch placer mining
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    Placer miners work near a sluice in Russell Gulch, Gilpin County, Colorado. Their tools include wheelbarrows, shovels, picks, and pitchforks. Monitors spray water, mine buildings are on the surrounding hills. David Henderson is in the foreground,...
  • 
    Russell Gulch (Colo.)--1860-1870.; Gold mining--Colorado--Russell Gulch--1860-1870.; Hydraulic mining--Colorado--Russell Gulch--1860-1870.; Miners--Colorado--Russell Gulch--1860-1870.; Mining--Colorado--Russell Gulch--1860-1870.;...
  • 
    [between 1860 and 1870]
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  • Gilfillan, John A.
  • 
    1897. The project was financed by Pennsylvania and New York capitalists. The large portal was near the base of Spencer Mountain and contained two sets of tracks to haul loaded ore cars from mining points to bins near the portal, where the ore could...
  • 
    Mining engineers--Colorado--Eldora--1930-1940.; Eldora (Colo.)--1930-1940.; Gilpin County (Colo.)--1930-1940.; Cats--Colorado--1930-1940.; Gold mining--Colorado--Eldora--1930-1940.; Pioneers--Colorado--Eldora--1930-1940.; Gilfillan, John A.
  • 
    [1939?]
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  • Pre-1963 Colorado mining fatalities
  • 
    An alphabetical listing of people who were killed in mining accidents in Colorado from 1884, when state legislation first required mining companies to report their accidents, through 1962.
  • 
    Mine accidents--Colorado. ; Registers of births, etc.--Colorado. ; Colorado--Vital records.
  • 
    1995
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  • Prospect shaft on east side of Grouse Mtn., Cripple Creek
  • 
    Two miners stand near a headframe at a mining prospect on Grouse Mountain in the Cripple Creek mining district (Teller County), Colorado. A horse is hitched to a winch. The town of Victor is in the distance.
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    Grouse Mountain (Teller County, Colo.)--1880-1900.; Teller County (Colo.)--1880-1900.; Hoisting machinery--Teller County--Colorado--1880-1900.; Horses--Teller County--Colorado--1880-1900.; Miners--Teller County--Colorado--1880-1900.; Mining--Teller...
  • 
    [between 1880 and 1900?]
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  • Gilmore, the actual site of the first of the recent discoveries
  • 
    View of Gilmore, a settlement in the Platoro District, (Conejos) County, Colorado; shows log houses, tents, a wagon, a meadow, a feed trough, pine forest, hills, and fire damaged timber.
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    Conejos County (Colo.)--1910-1920.; Mining--Colorado--Conejos County--1910-1920.; Settlements--Colorado--Conejos County--1910-1920.
  • 
    [between 1910 and 1920?]
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  • Red Mountain Mining District
  • 
    Miners pose with a pack train of burros near a lake or pond in the Red Mountain Mining District in Ouray or San Juan County, Colorado. Two of the men are African American. The men wear hats, and two smoke pipes. The burros carry split wooden logs....
  • 
    African Americans--Colorado--Red Mountain Mining District--1890-1900.; Red Mountain Mining District (Colo.)--1890-1900.; Donkeys--Colorado--Red Mountain Mining District--1890-1900.; Lakes & ponds--Colorado--Red Mountain Mining District--1890-1900.;...
  • 
    [ca. 1890]
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  • Smelter - unid.
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    A view of mining and a smelter building possibly in Colorado. One mining building is elevated on wood platform structure, tracks for transport lead out of one side. Smoke stacks for the smelter are in the background. Railroad tracks, a horse and a...
  • 
    Mine buildings--Colorado--1890-1910.; Mining--Colorado--1890-1910.; Smelters--Colorado--1890-1910.
  • 
    [between 1890 and 1910]
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  • Cripple Creek, Colo.
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    View of the mining town of Cripple Creek (Teller County), Colorado. Shows the National Hotel and Gold Mining Stock Exchange, one and two-story wood frame residences, multi-story masonry commercial buildings, churches, and a school. A mining...
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    Cripple Creek (Colo.)--1900-1910.; Pisgah, Mount (Colo.)--1900-1910.; Cities & towns--Colorado--Cripple Creek--1900-1910.; Mine buildings--Colorado--Cripple Creek--1900-1910.; Mining--Colorado--Cripple Creek--1900-1910.
  • 
    [between 1900 and 1910?]
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  • Resting place of old mining machinery 11th & Wazee Sts. Denver, Colo.
  • 
    Old mining cable hoists, boilers and scrap metal sit in a lot at 11th and Wazee streets in Denver, Colorado. In the background are downtown Denver businesses including the Mountain States Telephone Company building.
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    Mining machinery--Colorado--Denver--1930-1940.; Denver (Colo.)--1930-1940.; Junkyards--Colorado--Denver--1930-1940.; Mining--Colorado--Denver--1930-1940.
  • 
    1938
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  • Gold dredge, Breckenridge, Colo
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    View of the Blue River Placer Mining Company (or Continental Mining Company) bucket-line dredging boat, in Breckenridge, Summit County, Colorado. The covered stacker of the hydraulic mine and processing plant extends over tailing piles; a person is...
  • 
    Dredges--Colorado--Breckenridge--1910-1940.; Mining machinery--Colorado--Breckenridge--1910-1940.; Breckenridge (Colo.)--1910-1940.; Gold mining--Colorado--Breckenridge--1910-1940.; Hydraulic mining--Colorado--Breckenridge--1910-1940.;...
  • 
    [between 1917 and 1938?]
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  • Gold dredge in Summit County, Colorado
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    View of a Blue River Placer Mining Company hydraulic placer bucket-line dredge, in the Blue River, Summit County, Colorado. The gold mining vessel and processing plant has a covered stacker extending over tailing piles; mountains are in the...
  • 
    Blue River Placer Mining Company--1920-1930.; Dredges--Colorado--Summit County--1920-1930.; Mining machinery--Colorado--Summit County--1920-1930.; Tailings embankments--Colorado--Summit County--1920-1930.; Blue River (Colo. : River)--1920-1930.;...
  • 
    [between 1920 and 1925?]
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  • Placer mining, Umcompahgre [sic] Creek, Colorado
  • 
    View of hydraulic gold placer mining in Mesa County, Colorado; shows jets of water, hills, and Uncompahgre Creek.
  • 
    Mesa County (Colo.)--1880-1900.; Gold mining--Colorado--Mesa County--1880-1900.; Hydraulic mining--Colorado--Mesa County--1880-1900.; Mining--Colorado--Mesa County--1880-1900.
  • 
    [between 1880 and 1900?]
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  • Flume on Cliff 400 feet above river, Montrose Placer Mining Company
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    View of the Montrose Placer Mining Company flume, in Montrose County, Colorado, under construction. A man is by stacked lumber; the Dolores Creek is below, at the bottom of sandstone cliffs. The water was used for hydraulic gold mining.
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    Dolores Creek (Colo.)--1890-1900.; Montrose County (Colo.)--1890-1900.; Flumes--Colorado--Montrose County--1890-1900.; Hydraulic mining--Colorado--Montrose County--1890-1900.; Mining--Colorado--Montrose County--1890-1900.
  • 
    1890
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  • Hydraulic gold mining, Alder gulch, near Virginia City
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    Miners sit and stand near hydraulic mining equipment at a placer mining operation in Alder gulch, Madison County, Montana. Water runs from the top of the gulch. Shows sluice boxes; water sprays from a monitor nozzle.
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    Alder Gulch (Madison County, Mont.)--1870-1880.; Madison County (Mont.)--1870-1880.; Expeditions & surveys--Montana--Madison County--1870-1880.; Hydraulic Mining--Montana--Madison County--1870-1880.; Mining--Montana--Madison County--1870-1880.;...
  • 
    [between 1870 and 1880?]
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  • Placer mining
  • 
    A view of a placer mining operation possibly in Colorado. What may be a sluice leads down to a river.
  • 
    Hydraulic mining--1890-1910.; Mining--1890-1910.
  • 
    [between 1890 and 1910]
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  • Mines at Victor, Colorado
  • 
    View of the mining town of Victor (Teller County), Colorado. Shows the Portland Gold Mining Company's general business office and warehouse, the Stratton Independence Mine buildings, and tailings. Freight trains are scattered across the hillside on...
  • 
    Midland Terminal Railway--1900-1910.; Portland Gold Mining Company--Buildings--1900-1910.; Squaw Mountain (Teller County, Colo.)--1900-1910.; Stratton Independence Mine (Teller County, Colo.)--1900-1910.; Victor (Colo.)--1900-1910.; Gold...
  • 
    [between 1900 and 1910?]
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  • The Stock Exchange and First National Bank, a two story street, Bennett Ave.
  • 
    Bruen Block, Gold Mining Stock Exchange, and First National Bank on Bennett Avenue, Cripple Creek, Colorado; scene includes stone terrace, boardwalk, and row of three attached flat-roof brick and frame commercial buildings; awnings advertise "First...
  • 
    Cripple Creek (Colo.)--1890-1900.; Bell towers--Colorado--Cripple Creek.; Stock exchanges--Colorado--Cripple Creek.; Streets--Colorado--Cripple Creek--1890-1900.; Bruen Block (Cripple Creek, Colo.)
  • 
    [1895 or 1896]
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  • A gold mine in the Elizabethtown mining district, the deep tunnel at the foot of Old Baldy Mountain in the Moreno Valley, Colfax County, New Mexico, altitude about 10,000 feet
  • 
    View shows a gold mining complex, probably the Red Bandana Mine, in the Moreno Valley at the foot of Baldy Mountain, Colfax County, New Mexico.
  • 
    Mine buildings--New Mexico--Colfax County--1890-1900.; Baldy (N.M.)--1890-1900.; Baldy Mountain (Colfax County, N.M.)--1890-1900.; Colfax County (N.M.)--1890-1900.; Red Bandana Group (Colfax County, N.M.)--1890-1900.; Gold mining--New...
  • 
    1896
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  • Glory Hole, Nevadaville
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    View of a large mining hole blasted into the rock in Nevadaville (Gilpin County), Colorado.
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    Nevadaville (Colo.)--1940-1950.; Holes--Colorado--Nevadaville--1940-1950.; Mining--Colorado--Nevadaville--1940-1950.
  • 
    May 30, 1940
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  • San Bernardo or Matterhorn
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    View of an abandoned mine building in the old mining camp of Matterhorn (San Miguel County), Colorado.
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    Abandoned mines--Colorado--Matterhorn--1940-1950.; Matterhorn (Colo.)--1940-1950.; Abandoned buildings--Colorado--Matterhorn--1940-1950.; Mining--Colorado--Matterhorn--1940-1950.
  • 
    September 11, 1947
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  • Excelsior Mine Buckskin Joe, Colo.
  • 
    View of the shafthouse and a cabin at the Excelsior Mining Group Mine near Buckskin Joe (Park County), Colorado.
  • 
    Abandoned mines--Colorado--Buckskin Joe--1940-1950.; Mine buildings--Colorado--Buckskin Joe--1940-1950.; Buckskin Joe (Park County, Colo.)--1940-1950.; Excelsior Mining Group Mine (Park County, Colo.)--1940-1950.; Cabins--Colorado--Buckskin...
  • 
    [1940]
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  • Mine
  • 
    View of an unidentified mining camp with mill buildings, possibly in San Juan County, Colorado.
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    Mining camps--Colorado--1940-1950.; Mills--Colorado--1940-1950.; Mining--Colorado--1940-1950.; Mountains--Colorado--1940-1950.
  • 
    [1940?]
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  • The Gold Mining Stock Exchange, Cripple Creek
  • 
    View of the brick and stone Gold Mining Stock Exchange building in Cripple Creek (Teller County), Colorado. Signs on the building read: "B. P. O. Elks, No. 316," "B. P. O. E. 316," "Light & Power," "Confectionery, Drink Coca-Cola delicious and...
  • 
    Elks (Fraternal order) Lodge No. 316 (Cripple Creek, Colo.)--Buildings--1930-1950.; Cripple Creek (Colo.)--1930-1950.; Commercial districts--Colorado--Cripple Creek--1930-1950.; Fraternal lodges--Colorado--Cripple Creek--1930-1950.;...
  • 
    [between 1930 and 1950]
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  • Keystone placer just below Telluride
  • 
    Keystone, a gold placer mine in San Miguel County, Colorado. A group of well-dressed men and women with a horse drawn wagon, stand on a hillside overlooking a mining operation. Water gushes out of a hydraulic nozzle (monitor) into a pit surrounded...
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    San Miguel County (Colo.)--1880-1890.; Gold mining--Colorado--San Miguel County--1880-1890.; Hydraulic Mining--Colorado--San Miguel County--1880-1890.; Mining--Colorado--San Miguel County--1880-1890.
  • 
    [between 1880 and 1890?]
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  • Gold mining dredge, Cripple Creek Alaska
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    Hydraulic placer gold mining dredge, known as Dredge #10. Built by the Fairbanks Exploration Company (a subsidiary of the U.S. Smelting, Refining & Mining Co.) in 1940.
  • 
    Dredges--Alaska--Fairbanks North Star Borough--1950-1960.; Gold dredging--Alaska--Fairbanks North Star Borough--1950-1960.; Fairbanks North Star Borough (Alaska)--1950-1960.; Hydraulic mining--Alaska--Fairbanks North Star Borough--1950-1960.;...
  • 
    June 22, 1950

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