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  • All fields: placer
(2306 results)



Display: 50

    • Mining camp, west of Eldora

    • 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...
    • 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
    • Placer mining

    • A view of a placer mining operation possibly in Colorado. Workers use placer mining machinery.
    • Hydraulic mining--1890-1910.; Miners--1890-1910.; Mining--1890-1910.
    • [between 1890 and 1910]
    • Idaho Springs

    • Automobiles are parked near the Placer Inn in Idaho Springs (Clear Creek County), Colorado. The building is Spanish Revival style, stucco with tile topped coping decorated with an Art-Deco design. The building has large paned windows and striped...
    • Placer Inn (Idaho Springs, Colo.)--1940-1950.; Roundup Riders of the Rockies (Colo.)--1940-1950.; Idaho Springs (Colo.)--1940-1950.; Automobiles--Colorado--Idaho Springs--1940-1950.; Bars--Colorado--Idaho Springs--1940-1950.;...
    • 1949 July
    • 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]
    • Placer gold fields, Russell, Colo.

    • View of Russell, Costilla County, Colorado, includes dwellings, outbuildings, mining sheds, Sangre de Cristo Creek and Denver and Rio Grande railroad engine, freight cars and passenger coach. Identified locations are: "1. Spanish Basin Placers, 2....
    • Russell (Colo.)--1890-1900.
    • 1897
    • Emigrant Gap Ridge, 84 miles, Old Man Mountain, Red Mountain, Castle Peak in distance

    • View of Central Pacific Railroad tracks (mile 84) at Emigrant Gap (Placer County), California; also shows idler cars, a snow shed, and distant mountains.
    • Central Pacific Railroad Company--1860-1890.; Emigrant Gap (Calif. : Mountain pass)--1860-1890.; Placer County (Calif.)--1860-1890.; Mountains--California--Placer County--1860-1890.; Passes (Landforms)--California--Placer County--1860-1890.;...
    • [between 1860 and 1885?]
    • Tonopah Placer Co dredge on Blue River below Breckenridge Colo

    • View of a Tonopah Placer Company placer gold dredge in Breckenridge, Summit County, Colorado. Men pose by the hydraulic mine operation; a United States flag tops the tern gantry.
    • Gold dredging--Breckenridge--1910-1920.; Mining machinery--Breckenridge--1910-1920.; Blue River (Colo. : River)--1910-1920.; Breckenridge (Colo.)--1910-1920.; Hydraulic mining--Colorado--Breckenridge--1910-1920.;...
    • June 30, 1917
    • Rocky cut above Alta - and American River, 2,000 feet below

    • View of a Central Pacific Railroad cut and tracks near Alta (Placer County), California. The American River is far below.
    • Central Pacific Railroad Company--1860-1890.; American River (Calif.)--1860-1890.; Placer County (Calif.)--1860-1890.; Railroad cuts--California--Placer County--1860-1890.; Railroad tracks--California--Placer County--1860-1890.;...
    • [between 1860 and 1885?]
    • Dredge coming up the Blue

    • View of a Tonopah Placer Company bucket-line hydraulic gold dredge in the Blue River, at Breckenridge, Summit County, Colorado. "Two-Mile Bridge" is to one side; placer mine tailings are against hills, men and a parked car are in the foreground.
    • Tonopah Placer Company--1910-1920.; Dredges--Colorado--Breckenridge--1910-1920.; Mining Machinery--Colorado--Breckenridge--1910-1920.; Tailings embankments--Colorado--Breckenridge--1910-1920.; Blue River (Colo. : River)--1910-1920.; Breckenridge...
    • July 28, 1918
    • Gold dredge in Summit County, Colorado

    • 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?]
    • Placer miners

    • Placer miners pose near a sluice and an ore feeder at a placer mining operation in Colorado.
    • Mine buildings--Colorado--1930-1940.; Hydraulic mining--Colorado--1930-1940.; Miners--Colorado--1930-1940.; Mining--Colorado--1930-1940.
    • [between 1930 and 1940]
    • 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]
    • Bloomer Cut

    • A view of the Bloomer Cut in Placer County, California along the route of the Central Pacific Railroad shows steep vertical walls with a wood flume at the top of the cut.
    • Central Pacific Railroad Company--1860-1870.; Placer County (Calif.)--1860-1870.; Flumes--California--Placer County--1860-1870.; Railroad cuts--California--Placer County--1860-1870.; Railroads--California--Placer County--1860-1870.
    • 1866
    • Officers Bar - south end

    • View of Officer's Bar and the Grayback Mine District in Placer, Costilla County, Colorado; shows (1-1) Grayback Gulch, (2) Placer Creek, and (3) Grayback on iron cut. Embankments show erosion from hydraulic gold dredging.
    • Costilla County (Colo.)--1930-1940.; Grayback Gulch (Colo.)--1930-1940.; Placer Creek (Colo.)--1930-1940.; Hydraulic mining--Colorado--Costilla County--1930-1940.; Mining--Colorado--Costilla County--1930-1940.
    • 1932
    • 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?]
    • Am. River and Canyon from Cape Horn, river below railroad 1,800 feet, 57 miles from Sacramento

    • View of a Central Pacific Railroad locomotive overlooking the American River and Long Ravine, near Cape Horn (Placer County), California.
    • Central Pacific Railroad Company--1860-1870.; American River (Calif.)--1860-1870.; Cape Horn (Placer County, Calif.)--1860-1870.; Placer County (Calif.)--1860-1870.; Railroads--California--Placer County--1860-1870.; Rivers--California--Placer...
    • [between 1860 and 1870?]
    • Alma, Colo. placer mining

    • Miners work inside a gold placer mine pit with a hydraulic nozzle (monitor) and a crane, Summit County, Colorado.
    • Alma (Colo.)--1880-1890.; Gold mining--Colorado--Alma--1880-1890.; Hydraulic Mining--Colorado--Alma--1880-1890.; Mining--Colorado--Alma--1880-1890.
    • 1885
    • Panoramic photograph of Eldora, looking north.

    • Panoramic view of Eldora (Boulder County), Colorado; numbered locations are: "1. power house, Mogul Tunnel, 2. Bank of Eldora, 3. residence of Mick Langley, 4. grocery store, J. Greenlee, 5. Weldon House (board), 6. residence, John H. Kemp, Happy...
    • Eldora (Colo.)--1890-1900.; Cities & towns--Colorado--Eldora--1890-1900.
    • 1899 August
    • View at Shady Run, 73 miles from Sacramento

    • View of felled timber and Central Pacific Railroad tracks (mile 73) at Shady Run, near Dutch Flat (Placer County), California.
    • Central Pacific Railroad Company--1860-1890.; Placer County (Calif.)--1860-1890.; Railroad tracks--California--Placer County--1860-1890.; Trees--California--Placer County--1860-1890.
    • [between 1860 and 1885?]
    • Keystone Placer Mine. Sluice boxes

    • View of the Keystone placer mine, shows frame mine buildings and a wooden sluice, San Miguel County, Colorado.
    • Keystone Mine (San Miguel County, Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Flumes--Colorado--San Miguel County--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mine buildings--Colorado--San Miguel...
    • [between 1882 and 1900?]
    • West Portal Tunnel No. 1, Grizzly Hill

    • A Central Pacific Railroad train stops near West Portal Tunnel No. 1 (mile 77) at Grizzly Hill, near Newcastle (Placer County), California.
    • Central Pacific Railroad Company--1860-1890.; Placer County (Calif.)--1860-1890.; Railroads--California--Placer County--1860-1890.; Tunnels--California--Placer County--1860-1890.
    • [between 1860 and 1885?]
    • Keystone Placer Mine. Giant at work.

    • View of a placer mining operation at Keystone Placer Mine, San Miguel County, Colorado; shows a monitor nozzle and a water pipe.
    • Keystone Mine (San Miguel County, Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Penstocks--Colorado--San Miguel...
    • [between 1882 and 1900?]
    • The Towers

    • Exterior view of Jonah Maurice Finn's residence, Placer St. and Pikes Peak Ave., Cripple Creek, Colorado; the three-story palatial twenty- six room mansion was completed by 1901 and torn down in 1920; also called "The Towers" or "Finn's Folly";...
    • Finn, Jonah Maurice--Homes & haunts.; Cripple Creek (Colo.)--1900-1920.; Houses--Colorado--Cripple Creek--1900-1920.
    • [between 1901 and 1920]
    • Placer mining Alma Placer Park Co, Colo

    • View of the Alma Placer, a hydraulic gold mine in Park County, Colorado; shows eroded embankments, a crane, and miners using monitors to aim jets of water.
    • Alma Placer (Colo.)--1880-1900.; Park County (Colo.); Hoisting machinery--Park County--1880-1900.; Hydraulic mining--Colorado--Park County--1880-1900.; Miners--Park County--1880-1900.; Mining--Colorado--Park County--1880-1900.
    • 1887
    • Fairplay, Colo. in background

    • Panoramic view of a placer mine and the town of Fairplay, Colorado, in Park County; shows stream in foreground and town on horizon.
    • Fairplay (Colo.)--1860-1870.; Mining--Colorado--Fairplay--1860-1870.
    • [about 1860]
    • U.S. Gold Placers no 13, looking up San Miguel River

    • View of the San Miguel River, a bridge, and a placer site of the U.S. Gold Placer Company in Montrose County or San Miguel County, Colorado. Shows frame buildings and piles of lumber by the water.
    • San Miguel River (Colo.)--1910-1930.; Bridges--Colorado--1910-1930.; Gold mining--Colorado--1910-1930.; Hydraulic mining--Colorado--1910-1930.; Rivers--Colorado--1910-1930.
    • [between 1919 and 1930?]
    • Long Ravine bridge from below, 120 feet high

    • View of a diamond stack Central Pacific Railroad locomotive and freight train on Long Ravine bridge, near Blue Canyon (Placer County), California.
    • Central Pacific Railroad Company--1860-1870.; Placer County (Calif.)--1860-1870.; Railroad bridges--California--Placer County--1860-1870.; Trestles--California--Placer County--1860-1870.
    • [between 1860 and 1870?]
    • Emigrant Gap - looking west from the tunnel

    • View of a Central Pacific Railroad train at Emigrant Gap in Placer County, California. Shows a track on a ridge reinforced with a stone retaining wall and logs and stone rubble.
    • Central Pacific Railroad Company--1860-1890.; Emigrant Gap (Calif. : Mountain pass)--1860-1880.; Placer County (Calif.)--1860-1880.; Railroads--California--Placer County--1860-1890.; Retaining walls--California--Placer County--1860-1890.
    • [between 1860 and 1885?]
    • 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]
    • Guarding 500 lbs of amalgam, Cottonwood Placers

    • Nine men and one boy of probably the Cottonwood Placer Company stand and sit in front of a building and hold weapons in Pinon (Montrose County), Colorado. Weapons include: a Sharp's double barrel shotgun, a Winchester M1873 carbine, and a...
    • Cottonwood Placer Company--People--1890-1900.; Pinon (Montrose County, Colo.)--1890-1900.; Buildings--Colorado--Pinon--1890-1900.; Gold mining--Colorado--Pinon--1890-1900.; Gold--Colorado--Pinon--1890-1900.; Guards--Colorado--Pinon--1890-1900.;...
    • 1897 Sep. 8
    • Placer operations

    • A view of placer mining operations probably in Colorado.
    • Hydraulic mining--Colorado--1890-1910.; Mining--Colorado--1890-1910.
    • [between 1890 and 1910]
    • Power plant for Tonopah Placer Co, Spruce Creek

    • Interior view of the power plant for the Tonopah Placer Company in Spruce Creek, Summit County, Colorado. The machinery includes side crank engines, flywheels, and a boiler.
    • Tonopah Placer Company.; Spruce Creek (Colo.)--1910-1930.; Interiors--Colorado--Spruce Creek--1910-1930.; Machinery--Colorado--Spruce Creek--1910-1930.; Mining--Colorado--Spruce Creek--1910-1930.; Power plants--Colorado--Spruce Creek--1910-1930.
    • [between 1910 and 1930]
    • Impounding dams on Gold Run Placer

    • View of the Gold Run Placer dams on Waterfall Creek near Ophir (San Miguel County), Colorado.
    • Gold Run Placer (San Miguel County, Colo.)--1900-1910.; Ophir (Colo.)--1900-1910.; Waterfall Creek (San Miguel County, Colo.)--1900-1910.; Dams--Colorado--Ophir--1900-1910.; Gold mining--Colorado--Ophir--1900-1910.; Hydraulic...
    • [between 1934 and 1941]
    • U.S. Gold Placer Ditch, looking up the San Miguel Valley, Colo.

    • View of a dirt embankment beside a ditch, and a placer site of the U.S. Gold Placer Company in Montrose County or San Miguel County, Colorado. A pile of lumber and large rocks are beside the ditch. Shows the San Miguel River in the valley.
    • San Miguel River (Colo.)--1880-1890.; Gold mining--Colorado--1880-1890.; Hydraulic mining--Colorado--1910-1930.; Rivers--Colorado--1880-1890.
    •  
    • Headquarters of the Happy Valley Placer Company, Eldorado camp

    • Men and boys stand or sit beside a horse-drawn buggy and a log cabin, possibly the home of John H. Kemp, in Eldora (Eldorado) in the Grand Island Mining District of Boulder County, Colorado. Men beside a wooden fence are identified left to right...
    • Happy Valley Placer Company (Colo.)--1890-1900.; Eldora (Colo.)--1890-1900.; Boys--Colorado--Eldora--1890-1900.; Carriages & coaches--Colorado--Eldora--1890-1900.; Hydraulic mining--Colorado--Eldora--1890-1900.; Log...
    • 1895
    • Junction of Gray Back Placer & Middle Creek Placer Colo.

    • View of the Grayback Mining District, Costilla County, Colorado; shows meadows, forest, and hills. A covered wagon and a man on horseback are by the creek bottom; embankments in the background have erosion from hydraulic gold dredges.
    • Costilla County (Colo.)--1900-1910.; Covered wagons--Colorado--Costilla County--1900-1910.; Horseback riding--Colorado--Costilla County--1900-1910.; Hydraulic mining--Colorado--Costilla County--1900-1910.; Mining--Colorado--Costilla...
    • [between 1900 and 1910?]
    • Placer miners, Cottonwood Placer Co., Pinion [sic] Co.

    • Ten miners from the Cottonwood Placer Company sit and stand in front of a wood frame building in Pinon (Montrose County), Colorado. One man holds a horse, and a dog lies on the ground.
    • Cottonwood Placer Company--People--1890-1900.; Pinon (Montrose County, Colo.)--1890-1900.; Buildings--Colorado--Pinon--1890-1900.; Horses--Colorado--Pinon--1890-1900.; Miners--Colorado--Pinon--1890-1900.; Mining--Colorado--Pinon--1890-1900.
    • 1897 July 18
    • Sluice box - placer mining in the hills

    • Miners use a sluice box for hydraulic gold placer mining, in South Dakota.
    • Sluices--South Dakota--1880-1890.; Hydraulic mining--South Dakota--1880-1890.; Miners--South Dakota--1880-1890.; Mining equipment--South Dakota--1880-1890.; Mining--South Dakota--1880-1890.
    • 1889
    • Placer mining, Farncomb Hill

    • Water pours from hoses on a hillside at a placer mine on Farncomb Hill (Summit County), Colorado. Surface structures and a sluice are nearby.
    • Farncomb Hill (Colo.)--1880-1900.; Mine buildings--Colorado--Summit County--1880-1900.; Summit County (Colo.)--1880-1900.; Hydraulic mining--Colorado--Summit County--1880-1900.; Mining--Colorado--Summit County--1880-1900.
    • [between 1880 and 1900?]
    • Giant at work, Cottonwood Placer Co.

    • Miners from the Cottonwood Placer Company use a monitor nozzle to hydraulically mine ore in Montrose County, Colorado. The San Miguel River is in the distance.
    • Cottonwood Placer Company--People--1890-1900.; Montrose County (Colo.)--1890-1900.; San Miguel River (Colo.)--1890-1900.; Hydraulic mining--Colorado--Montrose County--1890-1900.; Miners--Colorado--Montrose County--1890-1900.;...
    • 1897 July 21
    • Cape Horn - looking west

    • View of Central Pacific Railroad tracks at Cape Horn (Placer County), California.
    • Central Pacific Railroad Company--1860-1890.; Cape Horn (Placer County, Calif.)--1860-1890.; Railroad Tracks--California--Cape Horn--1860-1890.
    • [between 1860 and 1885?]

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