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  • All fields: dredges
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Display: 50

    • Placer mining near Russel [sic], La Veta Pass

    • Placer mining near Russel [sic], La Veta Pass

    • 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.

    • 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?]
    • The Colo. Gold Dredging Co. on the D.& R.G.R.R. at Russell, Colo.

    • 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?]
    • The Colo. Gold Dredging Co. on the D.& R.G.R.R. at Russell Colo.

    • 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?]
    • Mining dredge

    • Mining dredge

    • A man stands near the Derry Dredge, Empire Gold Dredging Company's hydraulic placer bucket-line vessel, near Leadville (Lake County), Colorado.

    • Lake County (Colo.)--1910-1930.; Dredges--American--Colorado--Lake County--1910-1930.; Gold mining--Colorado--Lake County--1910-1930.; Hydraulic mining--Colorado--Lake County--1910-1930.

    • [between 1915 and 1926]
    • Construction scene

    • Construction scene

    • Workmen stand by horse-drawn dredges near the edge of Archer Canal in Denver, Colorado. Charles S. Lillybridge's house and studio is in the distance.

    • Lillybridge, Charles S., 1849-1935.--Homes & haunts--1900-1910.; Denver (Colo.)--1900-1910.; Dredges--Colorado--Denver--1900-1910.; Horses--Colorado--Denver--1900-1910.; Laborers--Colorado--Denver--1900-1910.; Photographic...

    • [between 1904 and 1915]
    • Hydraulic dredge

    • Hydraulic dredge

    • Two hydraulic placer gold mining dredges, Colorado. A solitary man poses nearby.

    • Dredges--Colorado--1900-1910.; Gold mining--Colorado--1900-1910.; Hydraulic mining--Colorado--1900-1910.; Mining--Colorado--1900-1910.

    • [1900?]
    • Breckenridge, Colo Reliance Gold Dredge

    • Breckenridge, Colo Reliance Gold Dredge

    • View of a Reliance Gold Dredging Company Bucyrus-built hydraulic placer gold bucket-line dredge in Swan River, French Gulch, Summit County, Colorado. Colorado School of Mines students and miners pose on the vessel.

    • Reliance Gold Dredging Company--1900-1910.; Dredges--Colorado--Summit County--1900-1910.; Mining machinery--Colorado--Summit County--1900-1910.; French Gulch (Summit County, Colo.)--1900-1910.; Summit County (Colo.)--1900-1910.; Swan River...

    • 1906?
    • Junction of Gray Back Placer & Middle Creek Placer Colo.

    • 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?]
    • Two nine and one-half cubic foot placer dredges, the Colorado Gold Dredging Co.

    • Two nine and one-half cubic foot placer dredges, the Colorado Gold Dredging Co.

    • View of Colorado Gold Dredging Company Bucyrus-built bucket-line hydraulic mine and processing boats, in the Swan River at Valdora, Summit County, Colorado. Tailings are piled between them; buildings are in the background.

    • Dredges--Colorado--Valdora--1900-1910.; Mining machinery--Colorado--Valdora--1900-1910.; Tailings embankments--Colorado--Valdora--1900-1910.; Swan River (Colo.)--1900-1910.; Valdora (Colo.)--1900-1910.; Gold mining--Colorado--Valdora--1900-1910.;...

    • 1908
    • Dredges in Swan River Valley capacity of 8000 yds of gold bearing gravel daily

    • Dredges in Swan River Valley capacity of 8000 yds of gold bearing gravel daily

    • Hydraulic placer gold dredge, in Summit County, Colorado; shows the gantry, tail sluices, processing sheds, and the stacker extending over mine tailing piles. Hills are in the background.

    • Dredges--Colorado--Summit County--1890-1910.; Mining machinery--Colorado--Summit County--1890-1910.; Summit County (Colo.)--1890-1910.; Gold mining--Colorado--Summit County--1890-1910.; Hydraulic mining--Colorado--Summit County--1890-1910.;...

    • [between 1890 and 1910?]
    • Derry gold dredge by Twin Peaks

    • Derry gold dredge by Twin Peaks

    • Workmen stand on and near the Derry Dredge, Empire Gold Dredging Company's hydraulic placer bucket-line vessel, near Leadville (Lake County), Colorado.

    • Empire Gold Dredging Company--Equipment & supplies--1910-1930.; Lake County (Colo.)--1910-1930.; Dredges--American--Colorado--Lake County--1910-1930.; Gold mining--Colorado--Lake County--1910-1930.; Hydraulic mining--Colorado--Lake...

    • [between 1915 and 1926]
    • Cooley Bros. Dredge, Gen. view

    • Cooley Bros. Dredge, Gen. view

    • View of a dragline crane, a dredge, gabled buildings and mountains on probably Beaver Creek in Park County, Colorado.

    • Park County (Colo.)--1930-1950.; Dredges--Colorado--Park County--1930-1950.; Gold dredging--Colorado--Park County--1930-1950.; Hoisting machinery--Colorado--Park County--1930-1950.; Hydraulic mining--Colorado--Park County--1930-1950.

    • [between 1935 and 1950?]
    • Cooley Bros. Dredge, Gen. view

    • Cooley Bros. Dredge, Gen. view

    • View of a dragline crane, a dredge and a shovel, possibly on Beaver Creek in Park County, Colorado. The crane reads: "Cooley Brothers" and "Bucyrus Monighan."

    • Park County (Colo.)--1930-1950.; Dredges--Colorado--Park County--1930-1950.; Gold dredging--Colorado--Park County--1930-1950.; Hoisting machinery--Colorado--Park County--1930-1950.; Hydraulic mining--Colorado--Park County--1930-1950.

    • [between 1935 and 1945?]
    • So. Platte Dr. Co. gen. view

    • So. Platte Dr. Co. gen. view

    • View of the South Platte Dredging Company hydraulic placer gold mining dredge probably near Fairplay (Park County), Colorado. Tailings piles are nearby.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.; Mining--Colorado--Fairplay--1930-1950.

    • [between 1930 and 1950?]
    • So. Platte Dr. Co., rollers

    • So. Platte Dr. Co., rollers

    • View of roller mechanism on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Mining machinery--Parts--Colorado--Fairplay--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • Water supply ditch, So. Platte Dr. Co.

    • Water supply ditch, So. Platte Dr. Co.

    • View of a ditch that leads to the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Parker County). Gravel tailing piles are nearby and mountains are in the distance. Shows part of the dredge.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.; Mining--Colorado--Fairplay--1930-1950.; Tailings...

    • [between 1930 and 1950?]
    • So. Platte Dr. Co.

    • So. Platte Dr. Co.

    • View of an extended arm and conveyor belt on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Gravel tailing piles are on the ground at the end of the mechanical arm.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Conveying systems--Colorado--Fairplay--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • View of equipment on the South Platte Dredging Company hydraulic placer gold mining dredge probably near Fairplay (Park County), Colorado. Shows chains, cables, and iron beams.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Mining machinery--Colorado--Fairplay--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • View of bucket mechanisms on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows iron beams, cables, and buckets.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Dredging--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • Mechanized buckets scoop up soil on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows rock filled alluvial soil, cables, iron beams, and buckets.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Dredging--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • View of a tall iron beam structure that is part of the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows the iron beam framework, pulleys, and cables.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hoisting machinery--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • View of an iron framework on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows mechanized buckets transporting dirt, cables, iron beams, and the Platte River.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Conveying systems--Colorado--Fairplay--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • Buckets scoop soil from the Middle Fork South Platte River bed to be processed on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows iron beam framework, pulleys, and cables.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Dredging--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • Mechanized buckets lift dirt onto the South Platte Dredging Company hydraulic placer gold mining dredge probably near Fairplay (Park County), Colorado. Shows steel beam framework and cables.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1940-1950.; Conveying systems--Colorado--Fairplay--1940-1950.; Dredges--Colorado--Fairplay--1940-1950.; Dredging--Colorado--Fairplay--1930-1950.;...

    • [between 1940 and 1950?]
    • So. Platte Drg. Co., control room

    • So. Platte Drg. Co., control room

    • A worker operates the controls of the South Platte Dredging Company hydraulic placer gold mining dredge probably near Fairplay (Park County), Colorado. The man sits in the control room and holds a control lever in each hand. Other control levers...

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Control rooms--Colorado--Fairplay--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • View of a control room with levers, switches, and dials on the South Platte Dredging Company hydraulic placer gold mining dredge probably near Fairplay (Park County), Colorado.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Control rooms--Colorado--Fairplay--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • View of an iron framework of machinery on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado. Shows cables, pulleys, and buckets.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hoisting machinery--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.;...

    • [between 1930 and 1950?]
    • So. Platte Drg. Co.

    • So. Platte Drg. Co.

    • View of the South Platte Dredging Company hydraulic placer gold mining dredge probably near Fairplay (Park County), Colorado. Shows dredge equipment, tailing piles, and hose.

    • South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Dredges--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.; Mining--Colorado--Fairplay--1930-1950.

    • [between 1930 and 1950?]
    • Boiler for the first dredge that went into Warren, Idaho

    • Boiler for the first dredge that went into Warren, Idaho

    • Men pose around a wagon carrying a boiler tank in Warren, Idaho County, Idaho. They wear suits, and slouch or planter hats. A team of eight horses in harness pull the conveyance.

    • Warren (Idaho)--1880-1890.; Dredges--Idaho--Warren--1880-1890.

    • [between 1880 and 1890?]
    • Old gold dredge near Tiger, Colo.

    • Old gold dredge near Tiger, Colo.

    • View of an abandoned gold dredge on probably the Swan River near Tiger (Summit County), Colorado. Tailings piles are nearby.

    • Dredges--Colorado--Tiger--1940-1950.; Mining machinery--Colorado--Tiger--1940-1950.; Tiger (Colo.)--1940-1950.; Hydraulic mining--Colorado--Tiger--1940-1950.; Mining--Colorado--Tiger--1940-1950.

    • 1940
    • South Platte Dredge Fairplay, Colo.

    • South Platte Dredge Fairplay, Colo.

    • View of the South Platte Dredge near Fairplay (Park County), Colorado. Tailings piles are nearby.

    • Dredges--Colorado--Fairplay--1940-1950.; Mining machinery--Colorado--Fairplay--1940-1950.; Fairplay (Colo.--1940-1950.; Hydraulic mining--Colorado--Fairplay--1940-1950.; Mining--Colorado--Fairplay--1940-1950.

    • [1940]
    • Timberline Dredge Alma, Colo.

    • Timberline Dredge Alma, Colo.

    • View of the Timberline Dredge on the South Platte River near Alma (Park County), Colorado. The covered digging arm extends out over the water.

    • Dredges--Colorado--Alma--1940-1950.; Mining machinery--Colorado--Alma--1940-1950.; Alma (Colo.)--1940-1950.; South Platte River (Colo. and Neb.)--1940-1950.; Hydraulic mining--Colorado--Alma--1940-1950.; Mining--Colorado--Alma--1940-1950.

    • [1940]
    • 8 yard shovel Timberline Dredging operation Alma, Colo.

    • 8 yard shovel Timberline Dredging operation Alma, Colo.

    • View of a steamshovel at the Timberline Dredging Company Mine near Alma (Park County), Colorado. The side of the machinery reads: "No 2" and "Page".

    • Dredges--Colorado--Alma--1940-1950.; Mining machinery--Colorado--Alma--1940-1950.; Alma (Colo.)--1940-1950.; Hydraulic mining--Colorado--Alma--1940-1950.; Mining--Colorado--Alma--1940-1950.

    • [1940]
    • Timberline Dredging operation Alma, Colo.

    • Timberline Dredging operation Alma, Colo.

    • View of a crane and the Timberline Dredge on the South Platte River near Alma (Park County), Colorado. The covered digging arm extends out over the water. A sign on the dredge reads: "Timberline Dredging Co. Dredge No 2 [...]".

    • Dredges--Colorado--Alma--1940-1950.; Mining machinery--Colorado--Alma--1940-1950.; Alma (Colo.)--1940-1950.; Hoisting machinery--Colorado--Alma--1940-1950.; Hydraulic mining--Colorado--Alma--1940-1950.; Mining--Colorado--Alma--1940-1950.

    • [1940]
    • Gold mining dredge, Cripple Creek Alaska

    • Gold mining dredge, Cripple Creek Alaska

    • 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
    • Dredge at Hahns Peak placers

    • Dredge at Hahns Peak placers

    • "Eleanor", a hydraulic placer gold mining dredge in Hahns Peak, Routt County, Colorado.

    • Dredges--Colorado--Hahns Peak--1910-1920.; Gold dredging--Colorado--Hahns Peak--1910-1920.; Hahns Peak (Colo.)--1910-1920.; Hydraulic mining--Colorado--Hahns Peak--1910-1920.; Mining--Colorado--Hahns Peak--1910-1920.

    • 1910
    • No. 6 Canadian Klondike Mining Co. dredge

    • No. 6 Canadian Klondike Mining Co. dredge

    • A group of men pose next to a Klondike Mining Company hydraulic placer gold dredge, Alaska.

    • Canadian Klondike Mining Company--1900-1910.; Dredges--Alaska--1900-1910.; Gold dredging--Alaska--1900-1910.; Alaska--1900-1910.; Hydraulic mining--Alaska--1900-1910.; Mining--Alaska--1900-1910.

    • November 7, 1909
    • Dredging

    • Dredging

    • Two well-dressed women and a man pose on the shore in front of a hydraulic placer gold mining dredge, possibly in Clear Creek or Jefferson County, Colorado.

    • Dredges--Colorado--1870-1890.; Gold mining--Colorado--1870-1890.; Hydraulic mining--Colorado--1870-1890.; Mining--Colorado--1870-1890.

    • [between 1870 and 1890?]
    • 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?]
    • Dredge

    • Dredge

    • Two well-dressed women and a man stand next to a hydraulic placer gold mining dredge, possibly in Clear Creek or Jefferson County, Colorado.

    • Dredges--Colorado--1870-1890.; Gold mining--Colorado--1870-1890.; Hydraulic mining--Colorado--1870-1890.; Mining--Colorado--1870-1890.

    • [between 1870 and 1890?]
    • Gold dredge near Golden, Colorado

    • Gold dredge near Golden, Colorado

    • Two well-dressed women and a man stand on the shore of a pond, west of what is now McIntyre Street, overlooking a hydraulic placer gold mining dredge southeast of North Table Mountain in Jefferson County, Colorado.

    • Dredges--Colorado--Jefferson County--1870-1890.; Jefferson County (Colo.)--1870-1890.; North Table Mountain (Colo.)--1870-1890.; Gold mining--Colorado--Jefferson County--1870-1890.; Hydraulic mining--Colorado--Jefferson County--1870-1890.;...

    • [between 1870 and 1890?]
    • Placer mining near Russell, La Veta pass

    • Placer mining near Russell, La Veta pass

    • Hydraulic placer gold mining dredge near Russell, La Veta Pass, Costilla County, Colorado.

    • Dredges--Colorado--Costilla County--1900-1910.; Gold dredging--Colorado--Costilla County--1900-1910.; Costilla County (Colo.)--1900-1910.; Veta Pass (Colo.)--1900-1910.; Hydraulic mining--Colorado--Costilla County--1900-1910.;...

    • [1900?]
    • Derry gold dredge, Box creek, Leadville

    • Derry gold dredge, Box creek, Leadville

    • Hydraulic placer gold mining dredge on Box Creek, near Leadville, Lake County, Colorado, sign reads: "Derry Dredge Built by New York Ent[erprises]. Shows several men on dredge owned by Empire Gold Dredging Company.

    • Empire Gold Dredging Company--Equipment & supplies--1920-1930.; Dredges--Colorado--Lake County--1920-1930.; Gold dredging--Colorado--Lake County--1920-1930.; Box Creek (Lake County, Colo.)--1920-1930.; Lake County (Colo.)--1920-1930.; Hydraulic...

    • 1920
    • Fairplay, Colorado dredge

    • Fairplay, Colorado dredge

    • Distant view of a hydraulic placer gold mining dredge, Fairplay, Park County, Colorado with Mosquito Range in background.

    • Dredges--Colorado--Fairplay--1950-1960.; Gold dredging--Colorado--Fairplay--1950-1960.; Fairplay (Colo.)--1950-1960.; Hydraulic mining--Colorado--Fairplay--1950-1960.; Mining--Colorado--Fairplay--1950-1960.

    • September 1953
    • Fairplay, Colorado dredge

    • Fairplay, Colorado dredge

    • Distant view of a gold mining dredge and tailings, Fairplay, Park County, Colorado with Mosquito Range in background.

    • Dredges--Colorado--Fairplay--1950-1960.; Gold dredging--Colorado--Fairplay--1950-1960.; Fairplay (Colo.)--1950-1960.; Hydraulic mining--Colorado--Fairplay--1950-1960.; Mining--Colorado--Fairplay--1950-1960.

    • September 1953
    • Alma Gold Mining Co.

    • Alma Gold Mining Co.

    • Alma Gold Mining Company hydraulic placer dredge, Park County, Colorado shows tailings, settling pond and backhoe with Mosquito Range in background.

    • Alma Gold Mining Company (Colo.)--1930-1940.; Dredges--Colorado--Park County--1930-1940.; Gold dredging--Colorado--Park County--1930-1940.; Park County (Colo.)--1930-1940.; Hydraulic mining--Colorado--Park County--1930-1940.; Mining--Colorado--Park...

    • February 24, 1936
    • Gold dredge, Fairplay

    • Gold dredge, Fairplay

    • Hydraulic placer gold mining dredge, Fairplay, Park County, Colorado.

    • Dredges--Colorado--Fairplay--1940-1950.; Gold dredging--Colorado--Fairplay--1940-1950.; Fairplay (Colo.)--1940-1950.; Hydraulic mining--Colorado--Fairplay--1940-1950.; Mining--Colorado--Fairplay--1940-1950.

    • 1942

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