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  • All fields: sluice
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    • Vacuum tanks sluices filtering Burkhardt

    • Vacuum tanks sluices filtering Burkhardt

    • Burkhardt sits on a beam that straddles a sluice that holds water near vacuum tanks in the Golden Cycle Mill in El Paso County, Colorado.

    • Golden Cycle Corporation--1930-1940.; Sluices--Colorado--El Paso County--1930-1940.; Interiors--Colorado--El Paso County--1930-1940.; Mining--Colorado--El Paso County--1930-1940.; Smelters--Colorado--El Paso County--1930-1940.

    • 1932, August 2
    • The Real Pioneers of Colorado

    • The Real Pioneers of Colorado

    • Transcript of a document originally written by Maria Davies McGrath in 1934. This document contains transcripts of all three volumes, arranged alphabetically by pioneers last name. Within each entry is a brief biography of the individual (s) who...

    • Pioneers--Colorado.; Colorado--Biography.

    • 1934
    • Silver Queen [i.e. Elephant Eagle Mine] gold strike in Calif desert.

    • Silver Queen [i.e. Elephant Eagle Mine] gold strike in Calif desert.

    • Jess Knight, owner of the Elephant Eagle Mine, Chris Anderson, and N. W. pose near a sluice near Mojave, California. Jess Knight holds a pan with gold amalgam in it.

    • Elephant Eagle Mine (Calif.)--1930-1940.; Mojave (Calif.)--1930-1940.; Gold mining--California--Mojave--1930-1940.; Hydraulic mining--California--Mojave--1930-1940.; Miners--California--Mojave--1930-1940.; Mining--California--Mojave--1930-1940.;...

    • 1934 December 7
    • Early stamp mill

    • Early stamp mill

    • Abandoned stamp mill parts that include a waterwheel and a sluice box, in Colorado.

    • Sluices--Colorado--1930-1940.; Hydraulic mining--Colorado--1930-1940.; Mining--Colorado--1930-1940.; Ruins--Colorado--1930-1940.; Waterwheels--Colorado--1930-1940.

    • 1936
    • Hendrie-Bolthoff's foundry, Central City, 1941

    • Hendrie-Bolthoff's foundry, Central City, 1941

    • Snow covers the ruins of the Hendrie-Bolthoff Foundry in Central City. A decaying water sluice pours water into the creek below. The creek banks are muddy and partially covered with snow. The wood, masonry, and tin walls are crumbling and in decay....

    • Central City (Colo.)--1940-1950.; Foundries--Colorado--Central City--1940-1950.; Ruins--Colorado--Central City--1940-1950.

    • 1941
    • Henson Ute Ulay mine

    • Henson Ute Ulay mine

    • The view looks down on two buildings used by miners at the Ute- Ulay mine, in Hinsdale County, Colorado. One has a stepped roofline, the other has a gabled roof. A sluice is in the distance.

    • Mine buildings--Colorado--Hinsdale County--1940-1950.; Hinsdale County (Colo.)--1940-1950.

    • 1942
    • American Flats 1949

    • American Flats 1949

    • View of ruins at American Flats, Colorado, showing high alpine tundra among snow capped peaks and ruins from early mining days; ruins include sluice and collapsed buildings; road leads to the ruins.

    • American Flats (Colo.)--1940-1950.; Mining--Colorado--American Flats--1940-1950.; Ruins--Colorado--American Flats--1940-1950.

    • 1949
    • American Flats 1949

    • American Flats 1949

    • View of ruins at American Flats, Colorado; shows high alpine tundra among snow capped peaks and ruins from early mining days; ruins include sluice and collapsed buildings.

    • American Flats (Colo.)--1940-1950.; Abandoned buildings--Colorado--American Flats--1940-1950.; Mining--Colorado--American Flats--1940-1950.

    • 1949
    • Placering below Black Hawk, Colo.

    • Placering below Black Hawk, Colo.

    • Placer miners work a sluice probably in Clear Creek near Black Hawk, Gilpin County, Colorado.

    • Blackhawk (Colo.)--1950-1960.; Hydraulic mining--Colorado--Blackhawk--1950-1960.; Miners--Colorado--Blackhawk--1950-1960.; Mining--Colorado--Blackhawk--1950-1960.

    • 1950 July 9
    • Pre-1963 Colorado mining fatalities

    • 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
    • East end of mill, Smith & Parmelee Gold Co. on Gregory Extension & Briggs Lodes.

    • East end of mill, Smith & Parmelee Gold Co. on Gregory Extension & Briggs Lodes.

    • Miners pose at the Smith & Parmelee Gold Company mill at Gregory Gulch near Central City in Gilpin County, Colorado. The gold mine is beside the Briggs Gold Mining Company lode and on what was known as the Gregory Extension crevice. Shows mule and...

    • Smith & Parmelee Gold Mining Co.--Buildings--1860-1870.; Gilpin County (Colo.)--1860-1870.; Gregory Gulch (Colo.)--1860-1870.; Gold mining--Colorado--Gregory Gulch--1860-1870.; Mine buildings--Colorado--Gregory Gulch--1860-1870.;...

    • [1861]
    • Hydraulic, gold mining, Alder Gulch near Virginia City

    • Hydraulic, gold mining, Alder Gulch near Virginia City

    • Miners monitor the flow of water through hoses and sluice boxes in Alder Gulch, Madison County, Montana. Water from the top of the gulch and from a monitor nozzle erodes the soil of the hill.

    • Alder Gulch (Mont.)--1870-1880.; Madison County (Mont.)--1870-1880.; Expeditions & surveys--Montana--Madison County--1870-1880.; Hydraulic Mining--Montana--Madison County--1870-1880.; Miners (Mont.)--Montana--Madison County--1870-1880.;...

    • [1871]
    • Virginia City, M.T.

    • Virginia City, M.T.

    • View of Virginia City, Madison County, Montana. Shows houses and commercial buildings. A sluice box sits at the edge of Alder Gulch. Mountains are in the distance.

    • Alder Gulch (Mont.)--1870-1880.; Virginia City (Mont.)--1870-1880.; Canyons--Montana--Virginia City--1870-1880.; Cities & towns--Montana--Virginia City--1870-1880.; Hydraulic mining--Montana--Virginia City--1870-1880.; Mining--Montana--Virginia...

    • [1871]
    • 20,000 tons $20.00 ore

    • 20,000 tons $20.00 ore

    • View of the Dew Drop Mine near Ward in Frances (Camp Francis, Dew Drop, Boulder County), Colorado. A man identified as Costy stands on tailings between the old and new shaft houses. Shows a tipple, and a log and wood retaining wall. Lumber and...

    • Dew Drop Mine (Boulder County, Colo.)--1890-1900.; Frances (Colo.)--1890-1900.; Mine buildings.; Mining.; Tipples.

    • [1895?]
    • Cabin at Creede, Colo.

    • Cabin at Creede, Colo.

    • A woman wearing a long dress stands outside a cabin in the town of Creede, Colorado, in Mineral County. The residence is a one-story, clapboard building with a side gable, tin roof, covered porch, and two chimneys. Ivy grows up the side of the...

    • Creede (Colo.)--1890-1900.; Pioneers--Colorado--Creede--1890-1900.; Russell Mrs.

    • [1895?]
    • Miners inside a gold mine pit

    • Miners inside a gold mine pit

    • Miners use shovels and picks in a sluice and operate a crane on a hydraulic placer gold mining dredge, Park County, Colorado. Pipes run down the wall into the pit.

    • Dredges--Colorado--Park County--1900-1910.; Gold dredging--Colorado--Park County--1900-1910.; Park County (Colo.)--1900-1910.; Drilling & boring machinery--Colorado--Park County--1900-1910.; Hydraulic mining--Colorado--Park County--1900-1910.;...

    • [1900?]
    • Central City, Colorado

    • Central City, Colorado

    • View of The New York Mill Company at the south end of Black Hawk leading into Central City, (Gilpin County) Colorado. Shows: mill building, smokestacks, houses, tailings, Colorado & Southern railroad tracks, and a wooden sluice with icicles.

    • Colorado and Southern Railway.--1900-1910.; Sluices--Colorado--Blackhawk--1900-1910.; Blackhawk (Colo.)--1900-1910.; Houses--Colorado--Blackhawk--1900-1910.; Mills--Colorado--Blackhawk--1900-1910.; Mining--Colorado--Blackhawk--1900-1910.; Railroad...

    • [1900?]
    • Scaffolding and sluiceway for pouring concrete - formwork for retaining walls

    • Scaffolding and sluiceway for pouring concrete - formwork for retaining walls

    • View of Alameda underpass construction in Denver, Colorado; shows concrete forms, a sluice, and spectators.

    • Concrete construction--Formwork--Colorado--Denver--1900-1910.; Sluices--Colorado--Denver--1900-1910.; Underpasses--Colorado--Denver--1900-1910.; Denver (Colo.)--1900-1910.; Construction--Colorado--Denver--1900-1910.

    • [1909 or 1910]
    • Sluiceway for pouring concrete - formwork for retaining walls

    • Sluiceway for pouring concrete - formwork for retaining walls

    • View of Alameda underpass construction in Denver, Colorado; shows concrete forms, a sluice, and machinery.

    • Concrete construction--Formwork--Colorado--Denver--1900-1910.; Sluices--Colorado--Denver--1900-1910.; Underpasses--Colorado--Denver--1900-1910.; Denver (Colo.)--1900-1910.; Construction--Colorado--Denver--1900-1910.

    • [1909 or 1910]
    • Concrete sluice during construction of the Alameda Avenue subway

    • Concrete sluice during construction of the Alameda Avenue subway

    • View of Alameda Avenue underpass construction in Denver, Colorado; shows men pouring concrete through a sluice into forms.

    • Concrete construction--Formwork--Colorado--Denver--1900-1910.; Sluices--Colorado--Denver--1900-1910.; Underpasses--Colorado--Denver--1900-1910.; Denver (Colo.)--1900-1910.; Construction workers--Colorado--Denver--1900-1910.;...

    • [1909 or 1910]
    • Industries construction equipment steam tractor in scene at Alameda subway site

    • Industries construction equipment steam tractor in scene at Alameda subway site

    • A workman adds oil to the engine of an M. Rumely tractor near the Alameda Avenue underpass construction site in Denver, Colorado. Another man poses near a sluice used to transport mixed concrete.

    • Underpasses--Colorado--Denver--1900-1910.; Denver (Colo.)--1900-1910.; Construction workers--Colorado--Denver--1900-1910.; Construction--Colorado--Denver--1900-1910.; Tractors--Colorado--Denver--1900-1910.

    • [1909]
    • Ceremony at Moffat Filter Plant

    • Ceremony at Moffat Filter Plant

    • Mayor Benjamin Stapleton and Denver Water Commissioner Richard Wensley hold the switch mechanism to a sluice gate near the Moffat Filter Plant in Lakewood (Jefferson County), Colorado. Other men, photographers with cameras, and two women stand...

    • Stapleton, Benjamin Franklin, 1869-1950--Public appearances.; Denver (Colo.). Board of Water Commissioners.--1930-1940.; Moffat Filter Plant (Lakewood, Colo.)--Rites & ceremonies--1930-1940.; Lakewood (Colo.)--1930-1940.;...

    • [1937 August 20]
    • Placer mining in Gregory Gulch between Central City and Black Hawk, Colo.

    • Placer mining in Gregory Gulch between Central City and Black Hawk, Colo.

    • Placer miners pose near a sluice in Gregory Gulch (Gilpin County), Colorado. Shows mine buildings and cabins.

    • Sluices--Colorado--Gilpin County--1860-1870.; Gregory Gulch (Colo.)--1860-1870.; Cabins--Colorado--Gilpin County--1860-1870.; Hydraulic mining--Colorado--Gilpin County--1860-1870.; Miners--Colorado--Gilpin County--1860-1870.;...

    • [between 1860 and 1870]
    • Russell Gulch placer mining

    • Russell Gulch placer mining

    • 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]
    • Early placer mining

    • Early placer mining

    • 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]
    • Placer mine

    • Placer mine

    • View of women posing by a hydraulic mine in (probably) Colorado; shows a jet of water, sheds, a sluice, miners, and eroded embankments.

    • Hydraulic mining--Colorado--1860-1890.; Mining--Colorado--1860-1890.; Women--Colorado--1860-1890.

    • [between 1860 and 1890?]
    • Hydraulic mining Hoosier Pass, Summit Co

    • Hydraulic mining Hoosier Pass, Summit Co

    • View of a placer gold mine near Hoosier Pass, Summit County, Colorado; shows an eroded chasm. A miner is by the sluice, holding a gold pan.

    • Sluices--Colorado--Summit County--1860-1890.; Summit County (Colo.)--1860-1890.; Hydraulic mining--Colorado--Summit County--1860-1890.; Miners--Colorado--Summit County--1860-1890.; Mining equipment--Colorado--Summit County--1860-1890.;...

    • [between 1860 and 1890?]
    • Miners near a sluice

    • Miners near a sluice

    • Miners and their families pose near a sluice probably in Colorado. Their cabins are nearby.

    • Sluices--Colorado--1860-1880.; Hydraulic mining--Colorado--1860-1880.; Miners--Colorado--1860-1880.

    • [between 1861 and 1875]
    • Confluence of Clear Creek and Soda Creek

    • Confluence of Clear Creek and Soda Creek

    • View of the confluence of Soda Creek and Clear Creek in Idaho Springs (Clear Creek County), Colorado. A sluice is beside Clear Creek which is filled with garbage and debris. Houses are near the stream.

    • Clear Creek (Clear Creek County, Colo.)--1860-1880.; Idaho Springs (Colo.)--1860-1880.; Sluices.; Streams.

    • [between 1864 and 1877?]
    • Wilson & Cass Reduction Works

    • Wilson & Cass Reduction Works

    • Miners pose near the bridge to the Wilson and Cass Reduction Works probably beside Clear Creek near Georgetown (Clear Creek County), Colorado. A sluice box connected to the building is near the creek. A sign over the bridge reads: "Wilson & Cass...

    • Wilson & Cass Reduction Works (Colo.)--1860-1880.; Georgetown (Colo.)--1860-1880.; Hydraulic mining--Colorado--Georgetown--1860-1880.; Mills--Colorado--Georgetown--1860-1880.; Miners--Colorado--Georgetown--1860-1880.;...

    • [between 1864 and 1877]
    • Colorado placer mining

    • Colorado placer mining

    • Miners use a monitor or nozzle in a placer mine operation in Colorado. A sluice is nearby.

    • Hydraulic mining--Colorado--1860-1880.; Miners--Colorado--1860-1880.; Mining--Colorado--1860-1880.

    • [between 1865 and 1875]
    • Hydraulic mining California Gulch

    • Hydraulic mining California Gulch

    • View of a trench and sluice at a placer mine operation on California Gulch (possibly Lake County), Colorado. A building is nearby.

    • Hydraulic mining--Colorado--1860-1880.; Miners--Colorado--1860-1880.; Mining--Colorado--1860-1880.

    • [between 1865 and 1875]
    • Hydraulic mining. The sluice blocks

    • Hydraulic mining. The sluice blocks

    • View of a placer gold mine sluice between eroded embankments in California.

    • Sluices--California--1860-1880.; Hydraulic mining--California--1860-1880.; Mining--California--1860-1880.

    • [between 1865 and 1880?]
    • Black Hills Scenery

    • Black Hills Scenery

    • Miners in a gold placer mine pit, South Dakota; shows tailings, sluice boxes, and wheelbarrows.

    • South Dakota--1870-1880.; Gold miners--South Dakota--1870-1880.; Hydraulic Mining--South Dakota--1870-1880.; Mining--South Dakota--1870-1880.

    • [between 1870 and 1880?]
    • Black Hills scenery

    • Black Hills scenery

    • Miners with shovels and wheelbarrows attend a boxed sluice in a gold placer mine pit, South Dakota.

    • South Dakota--1870-1880.; Gold miners--South Dakota--1870-1880.; Gold mining--South Dakota--1870-1880.; Hydraulic Mining--South Dakota--1870-1880.; Mining--South Dakota--1870-1880.

    • [between 1870 and 1880?]
    • Hydraulic gold mining, Alder gulch, near Virginia City

    • Hydraulic gold mining, Alder gulch, near Virginia City

    • 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.

    • 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?]
    • Granite Peak Little Cottonwood Canon , Utah

    • Granite Peak Little Cottonwood Canon , Utah

    • View of Granite Peak and a sluice near Little Cottonwood Creek and Canyon in Utah.

    • Sluices--Utah--1870-1880.; Canyons--Utah--1870-1880.; Hydraulic mining--Utah--1870-1880.; Mining--Utah--1870-1880.; Streams--Utah--1870-1880.

    • [between 1870 and 1880]
    • Tough Criss Bend Clear Creek Canon

    • Tough Criss Bend Clear Creek Canon

    • View of Colorado and Southern Railway (C&S) narrow gauge tracks, a sluice, and Clear Creek at Tough Criss Bend in Clear Creek Canyon (Jefferson County), Colorado.

    • Colorado and Southern Railway--1870-1880.; Sluices--Colorado--Jefferson County--1870-1880.; Clear Creek (Clear Creek County, Colo.)--1870-1880.; Clear Creek Canyon (Colo.)--1870-1880.; Jefferson County (Colo.)--1870-1880.;...

    • [between 1870 and 1880]
    • Near entrance to Clear Creek Canon

    • Near entrance to Clear Creek Canon

    • View of Clear Creek at the entrance to Clear Creek Canyon in Jefferson County, Colorado. Colorado and Southern Railway (C&S) narrow gauge tracks and a sluice are on either side of the creek.

    • Colorado and Southern Railway--1870-1880.; Sluices--Colorado--Jefferson County--1870-1880.; Clear Creek (Clear Creek County, Colo.)--1870-1880.; Clear Creek Canyon (Colo.)--1870-1880.; Jefferson County (Colo.)--1870-1880.;...

    • [between 1870 and 1880]
    • Near Breckenridge

    • Near Breckenridge

    • Miners sluice a screen full of dirt at Blue River Diggings, near Breckenridge, Summit County, Colorado.

    • Breckenridge (Colo.)--1870-1890.; Hydraulic mining--Colorado--Breckenridge--1870-1890.; Miners--Colorado--Breckenridge--1870-1890.; Mining equipment--Colorado--Breckenridge--1870-1890.; Mining--Colorado--Breckenridge--1870-1890.

    • [between 1870 and 1890]
    • Hydraulic gold mining

    • Hydraulic gold mining

    • This placer mine consists of a flume or sluice on an earthen dam; miners work with shovels and lumber.

    • Flumes--1870-1900.; Hydraulic mining--1870-1900.; Miners--1870-1900.; Mining equipment--1870-1900.; Mining--1870-1900.

    • [between 1870 and 1900?]
    • Hydraulic sluicing - Atlin G. M. Co., British Columbia

    • Hydraulic sluicing - Atlin G. M. Co., British Columbia

    • View of Atlin G. M. Company placer gold mining in British Columbia, Canada; shows monitors, eroded embankments, miners, and a sluice.

    • Sluices--Canada--British Columbia--1870-1900.; Gold mining--Canada--British Columbia--1870-1900.; Hydraulic mining--Canada--British Columbia--1870-1900.; Miners--Canada--British Columbia--1870-1900.; Mining--Canada--British Columbia--1870-1900.

    • [between 1870 and 1900?]
    • Scenery on North Clear Creek, showing the mines at work washing out gold.

    • Scenery on North Clear Creek, showing the mines at work washing out gold.

    • Shows an open framework side-wheel hydraulic placer gold dredge; gold miners feed gravel into a sluice next to the dredge, Clear Creek County, Colorado.

    • Dredges--Colorado--Clear Creek County--1870-1880.; Gold dredging--Colorado--Clear Creek County--1870-1880.; Clear Creek County (Colo.)--1870-1880.; Hydraulic mining--Colorado--Clear Creek County--1870-1880.; Mining--Colorado--Clear Creek...

    • [between 1870-1880?]
    • Railroad tracks and river

    • Railroad tracks and river

    • View of Colorado Central Railroad railroad tracks and a sluice near Clear Creek in Clear Creek Canyon (Jefferson County or Clear Creek County), Colorado.

    • Colorado Central Railroad Company--1870-1880.; Clear Creek (Clear Creek County, Colo.)--1870-1880.; Clear Creek Canyon (Colo.)--1870-1880.; Canyons--Colorado--1870-1880.; Railroad tracks--Colorado--1870-1880.; Streams--Colorado--1870-1880.

    • [between 1872 and 1877?]
    • Hydraulic mining near Virginia City, Montana

    • Hydraulic mining near Virginia City, Montana

    • View of a hydraulic mining operation in Virginia City, Montana; shows wooden sluices, a hose on a reel, rock tailings, a hoist and a section of the sluice or flume, and abandoned headgates.

    • Sluices--Montana--Virginia City--1870-1880.; Virginia City (Mont.)--1870-1880.; Flumes--Montana--Virginia City--1870-1880.; Hydraulic mining--Montana--Virginia City--1870-1880.; Mining--Montana--Virginia City--1870-1880.

    • [between 1872 and 1878]
    • Gold mining in Boren's Gulch, La Plata County, Colorado

    • Gold mining in Boren's Gulch, La Plata County, Colorado

    • A miner shovels ore into a wooden sluice at a placer operation in Boren Gulch, La Plata County, Colorado; a man in a top hat holds a pickaxe, another looks on.

    • La Plata County (Colo.)--1870-1880.; Gold mining--Colorado--La Plata County--1870-1880.; Hydraulic mining--Colorado--La Plata County--1870-1880.; Miners--Colorado--La Plata County--1870-1880.; Mining--Colorado--La Plata County--1870-1880.

    • [between 1872 and 1878]
    • Gulch mining, Willow Gulch

    • Gulch mining, Willow Gulch

    • View of a ground sluice for gold placer mining, at Willow Gulch, in (probably) Colorado. A cabin is by the hydraulic gold mine pit.

    • Sluices--Colorado--1870-1880.; Gold mining--Colorado--1870-1880.; Hydraulic mining--Colorado--1870-1880.; Mining--Colorado--1870-1880.

    • [between 1875 and 1880?]

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