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  • All fields: Placer
(2306 results)



Display: 50

    • 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
    • Flume near Idaho Springs

    • View of a wooden flume at probably a placer mine on Chicago Creek near Idaho Springs in Clear Creek County, Colorado. Shows a timber foot bridge over the creek, log cabins and tailings piles.
    • Chicago Creek (Colo.)--1860-1870.; Clear Creek County (Colo.)--1860-1870.; Flumes--Colorado--Clear Creek County--1860-1870.; Hydraulic mining--Colorado--Clear Creek County--1860-1870.; Streams--Colorado--Clear Creek County--1860-1870.
    • 1867
    • Gold Run pit

    • View of Gold Run hydraulic placer gold mine, near Breckenridge, Summit County, Colorado; shows miners, monitor nozzles, water jets, sluices, pipes, and electrical power poles.
    • Sluices--Colorado--Breckenridge--1870-1880.; Breckenridge (Colo.)--1870-1880.; Gold mining--Colorado--Breckenridge--1870-1880.; Hydraulic mining--Colorado--Breckenridge--1870-1880.; Miners--Colorado--Breckenridge--1870-1880.;...
    • 1879
    • Early placer mining Breckenridge Colo

    • View of a hydraulic gold mine in Breckenridge, Summit County, Colorado; shows eroded embankments, falling water, jets of water from "monitor" nozzles, sluices, flumes, a crane, and miners. Mountains are in the background.
    • Sluices--Colorado--Breckenridge--1880-1890.; Breckenridge (Colo.)--1880-1890.; Flumes--Colorado--Breckenridge--1880-1890.; Gold mining--Colorado--Breckenridge--1880-1890.; Hydraulic mining--Colorado--Breckenridge--1880-1890.;...
    • 1880?
    • Breckenridge

    • View of Breckenridge, Colorado, looking southeast, includes tents, frame and log dwellings and commercial buildings dotting the flats next to the Blue River which winds up to and through town. The foothills of Boreas Mountain are in the left, and...
    • Breckenridge (Colo.)--1880-1890.
    • 1881
    • Index to Colorado Mining Directory: First Edition 1883

    • Index to mines within Colorado. Information is arranged alphabetically by Mine name, with the county it is located in.
    • Mines and mineral industries--Colorado--Directories.; Mines and mineral resources--Colorado--Directories.;
    • 1883
    • 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
    • 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
    • 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
    • We have it rich. Washing and panning gold, Rockerville, Dak. Old timers

    • Miners use a gold pan and sluice for hydraulic gold placer mining, in Rockerville, Pennington County, South Dakota. They are: Spriggs, Lamb (by dog), and Dillon.
    • Sluices--South Dakota--Rockerville--1880-1890.; Rockerville (S D)--1880-1890.; Hydraulic mining--South Dakota--Rockerville--1880-1890.; Miners--South Dakota--Rockerville--1880-1890.; Mining equipment--South Dakota--Rockerville--1880-1890.;...
    • 1889
    • The Sierra Nevada snow blockade

    • View of snow removal on the Central Pacific Railroad near Emigrant Gap in the Sierra Nevadas in Placer County, California. Chinese laborers remove snow in Blue Canyon.
    • Central Pacific Railroad Company--1890-1900.; Alien labor, Chinese--California--1890-1900.; Blue Canyon (Calif. : Town)--1890-1900.; Emigrant Gap (Calif.)--1890-1900.; Sierra Nevada (Calif. and Nev.)--1890-1900.; Blizzards--California--1890-1900.;...
    • 1890
    • Flume on Cliff 400 feet above river, Montrose Placer Mining Company

    • 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.
    • 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
    • Panning gold at Cripple Creek

    • Men watch a miner use a pan for hydraulic placer gold mining in Cripple Creek, Teller County, Colorado.
    • Cripple Creek (Colo.)--1890-1900.; Gold mining--Colorado--Cripple Creek--1890-1900.; Hydraulic mining--Colorado--Cripple Creek--1890-1900.; Miners--Colorado--Cripple Creek--1890-1900.; Mining--Colorado--Cripple Creek--1890-1900.
    • 1891
    • View in La Plata Mountains at Sparticus Placer Camp Colo.

    • View of a placer mining tent camp in the mountains of La Plata County, Colorado.
    • Mining camps--Colorado--La Plata County--1890-1900.; La Plata County (Colo.)--1890-1900.; Hydraulic mining--Colorado--La Plata County--1890-1900.; Mining--Colorado--La Plata County--1890-1900.; Tents--Colorado--La Plata County--1890-1900.
    • 1893
    • Golconda extension placer mine, La Plata Mountains, Colo.

    • View of the Golconda Group Mine in Summitville, Rio Grande County, Colorado. Shows wood plank building, log cabin, and tent. A sluice box sits in an excavated trench. Men are in the distance.
    • Golconda Group Mine (Rio Grande County, Colo.)--1890-1900.; Summitville (Colo.)--1890-1900.; Hydraulic mining--Colorado--Summitville--1890-1900.; Mining--Colorado--Summitville--1890-1900.; Sluices--Colorado--Summitville--1890-1900.
    • 1893
    • Golconda placer mine, La Plata Mountains, Colo.

    • View of the Golconda Group Mine near Summitville in Rio Grand County, Colorado. A sluice box sits in an excavated trench. Men work near the trench. Mount Hesperus (Hesperus Mountain) is in the distance.
    • Golconda Group Mine (Rio Grande County, Colo.)--1890-1900.; Hesperus Mountain (Colo.)--1890-1900.; Summitville (Colo.)--1890-1900.; Hydraulic mining--Colorado--Summitville--1890-1900.; Mining--Colorado--Summitville--1890-1900.;...
    • 1893
    • Eldorado Camp

    • View of the mining settlement of Eldorado Camp (Happy Valley, Eldora), in the Grand Island Mining District in Boulder County, Colorado. Shows log houses, a storefront, pine trees and snow.
    • Happy Valley Placer Company (Colo.)--1890-1900.; Eldora (Colo.)--1890-1900.; Mining--Colorado--Eldora--1890-1900.; Settlements--Colorado--Eldora--1890-1900.; Valleys--Colorado--Eldora--1890-1900.
    • 1895
    • 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
    • Officer's Bar & Gray Back iron mines Placer, Colo

    • View of Grayback Mining District, in Costilla County, Colorado; shows iron mines and lode veins (1), and Grayback Gulch placers (2). Hydraulic gold mine erosion is in the foreground.
    • Costilla County (Colo.)--1890-1900.; Erosion--Colorado--Costilla County--1890-1900.; Hydraulic mining--Colorado--Costilla County--1890-1900.; Mining--Colorado--Costilla County--1890-1900.
    • 1896
    • Spanish Gulch Costilla County

    • Spanish Gulch gold placer mine, in the Grayback District, Costilla County, Colorado, consists of a stream contained by a wood flume; miners work the area with shovels. A man in the foreground runs a hydraulic "monitor" nozzle with a rock...
    • Costilla County (Colo.)--1890-1900.; Spanish Gulch (Costilla County, Colo.)--1890-1900.; Flumes--Colorado--Costilla County--1890-1900.; Hydraulic mining--Colorado--Costilla County--1890-1900.; Miners--Colorado--Costilla County--1890-1900.;...
    • 1896
    • 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
    • First view of La Sal Mountains from U.S. Placer road

    • View of storm clouds, hills, and valleys in probably Colorado. The La Sal Mountains in Utah are in the distance.
    • La Sal Mountains (Utah)--1890-1900.; Clouds--Colorado--1890-1900.; Hills--Colorado--1890-1900.; Valleys--Colorado--1890-1900.
    • 1897 July 15
    • San Miguel valley from U.S. Placer Road

    • View of a man and a dog in a horse-drawn wagon on a hill that overlooks the San Miguel valley in Colorado.
    • Carts & wagons--Colorado--1890-1900.; Valleys--Colorado--1890-1900.
    • 1897 July 15
    • Miners with monitor nozzle

    • Miners use a monitor nozzle at a Cottonwood Placer Company operation in Montrose County, Colorado.
    • Cottonwood Placer Company--1890-1900.; Montrose County (Colo.)--1890-1900.; Hydraulic mining--Colorado--Montrose County--1890-1900.; Mining--Colorado--Montrose County--1890-1900.
    • 1897 July 16
    • Washing with a hose

    • View of a placer mining operation on a river probably in Montrose County, Colorado. Men use a monitor nozzle to wash the riverbank.
    • Montrose County (Colo.)--1890-1900.; Hydraulic mining--Colorado--Montrose County--1890-1900.; Mining--Colorado--Montrose County--1890-1900.; Rivers--Colorado--Montrose County--1890-1900.
    • 1897 July 16
    • Headquarters of Cottonwood Placer Co., Pinion [sic], Colo.

    • View of the town of Pinon (Montrose County), Colorado. Shows a bridge over the San Miguel River.
    • Pinon (Montrose County, Colo.)--1890-1900.; San Miguel River (Colo.)--1890-1900.; Bridges--Colorado--Pinon--1890-1900.; Cities & towns--Colorado--Pinon--1890-1900.; Rivers--Colorado--Pinon--1890-1900.
    • 1897 July 16
    • Giant at work Cottonwood Placer Co.

    • View of men from the Cottonwood Placer Company with a monitor nozzle aimed at a riverbank in Montrose County, Colorado .
    • Cottonwood Placer Company--1890-1900.; Montrose County (Colo.)--1890-1900.; Hydraulic mining--Colorado--Montrose County--1890-1900.; Mining--Colorado--Montrose County--1890-1900.; Rivers--Colorado--Montrose County--1890-1900.
    • 1897 July 16
    • Pressure box and pipeline Cottonwood Placer Co.

    • View of a pipeline, mine, and pressure box worked by the Cottonwood Placer Company miners in Montrose County, Colorado.
    • Cottonwood Placer Company--Facilities--1890-1900.; Montrose County (Colo.)--1890-1900.; Gold mining--Colorado--Montrose County--1890-1900.; Hydraulic mining--Colorado--Montrose County--1890-1900.; Mining--Colorado--Montrose County--1890-1900.;...
    • 1897 July 16
    • Giant at work, Cottonwood Placer Co.

    • Miners use a monitor nozzle at a Cottonwood Placer Company mining operation in Montrose County, Colorado.
    • Cottonwood Placer Company--1890-1900.; Montrose County (Colo.)--1890-1900.; Hydraulic mining--Colorado--Montrose County--1890-1900.; Mining--Colorado--Montrose County--1890-1900.
    • 1897 July 16
    • Cottonwood Placer tunnel and ditch

    • Three men stand and sit by the Cottonwood Placer Company tunnel and ditch in Montrose County, Colorado.
    • Cottonwood Placer Company--People--1890-1900.; Montrose County (Colo.)--1890-1900.; Miners--Colorado--Montrose County--1890-1900.; Mining--Colorado--Montrose County--1890-1900.
    • 1897 July 17
    • Ocean Grove on San Miguel River, Cottonwood Placer Co.

    • Six men sit and stand outside a cave with attached shed identified as Ocean Grove near the San Miguel River in Montrose County, Colorado. Shows bottles on a table; a bed inside the cave beneath a rock overhang; and signs which read: "Ocean Grove,"...
    • Montrose County (Colo.)--1890-1900.; Caves--Colorado--Montrose County--1890-1900.; Men--Colorado--Montrose County--1890-1900.; Sheds--Colorado--Montrose County--1890-1900.
    • 1897 July 17
    • 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
    • Cleaning up ripple [sic] box, Cottonwood Placer Co.

    • Miners for the Cottonwood Placer Company pose in and near a riffle box (sluice) in Montrose County, Colorado. Two men have shovels.
    • Cottonwood Placer Company--People--1890-1900.; Montrose County (Colo.)--1890-1900.; Hydraulic mining--Colorado--Montrose County--1890-1900.; Miners--Colorado--Montrose County--1890-1900.; Mining--Colorado--Montrose County--1890-1900.;...
    • 1897 July 18

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