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  • All fields: Hydraulic
(723 results)



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    • 1926 Denver Householders' Directory and Street and Avenue Guide v.2

    • The Denver Householder Directory started in 1926 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
    • Denver (Colo.)--Directories.
    • 1926
    • 1927 Denver Householders' Directory and Street and Avenue Guide v.3

    • The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
    • Denver (Colo.)--Directories.
    • 1927
    • 1929 Denver Householders' Directory and Street and Avenue Guide v.5

    • The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
    • Denver (Colo.)--Directories.
    • 1929
    • 1930 Denver Householders' Directory and Street and Avenue Guide v.6

    • The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
    • Denver (Colo.)--Directories.
    • 1930
    • 1931 Denver Householders' Directory and Street and Avenue Guide v.7

    • The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
    • Denver (Colo.)--Directories.
    • 1931
    • 1934 Denver Householders' Directory and Street and Avenue Guide v.10

    • The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
    • Denver (Colo.)--Directories.
    • 1934
    • 1935 Denver Householders' Directory and Street and Avenue Guide v.11

    • The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
    • Denver (Colo.)--Directories.
    • 1935
    • 1936 Denver Householders' Directory and Street and Avenue Guide v.12

    • The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
    • Denver (Colo.)--Directories.
    • 1936
    • 1937 Denver Householders' Directory and Street and Avenue Guide v.13

    • The Denver Householder Directory started in 1924 and has been continued by other publishers right up to the present. These are arranged by address, allowing you to find out who was living in the house and/or the owner or the name of a business.
    • Denver (Colo.)--Directories.
    • 1937
    • 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]
    • [K]eystone Placer Mine giant at work

    • View of the Keystone Placer Mine near Telluride (San Miguel County), Colorado. Pipes, a sluice, and wooden staircase are nearby.
    • Keystone Mine (San Miguel County, Colo.)--1880-1900.; Telluride (Colo.)--1880-1900.; Hydraulic mining--Colorado--Telluride--1880-1900.; Miners--Colorado--Telluride--1880-1900.; Mining--Colorado--Telluride--1880-1900.
    • [between 1882 and 1900?]
    • [Three] 3 standing in a river 2 holding gold pans the other holding shovel

    • Outdoor portrait of a group of men who pan for gold in the South Platte River in Denver, Colorado. A spillway is in the distance.
    • Denver (Colo.)--1910-1920.; South Platte River (Colo. and Neb.)--1910-1920.; Hydraulic mining--Colorado--Denver--1910-1920.; Miners--Colorado--Denver--1910-1920.; Rivers--Colorado--Denver--1910-1920.
    • [between 1910 and 1920?]
    • A bit of mountain trail, near Aspen, Colo.

    • View of a stream in Pitkin County, Colorado; shows dirt road and flumes used in hydraulic gold placer mining.
    • Pitkin County (Colo.)--1880-1900.; Flumes--Colorado--Pitkin County--1880-1900.; Gold mining--Colorado--Pitkin County--1880-1900.; Hydraulic mining--Colorado--Pitkin County--1880-1900.; Mining--Colorado--Pitkin County--1880-1900.
    • [between 1880 and 1900?]
    • A closeup of hydraulic mining Alma Placer, Park County, Colo. on the South Fork of the South Platte

    • Gold miners pose under jets of water at a hydraulic mine in Park County, Colorado; bluffs in the background have erosion and waterfalls. A crane dangles a palette from a chain and pulley.
    • Park County (Colo.)--1880-1900.; Hydraulic mining--Colorado--Park County--1880-1900.; Miners--Colorado--Park County--1880-1900.; Mining equipment--Colorado--Park County--1880-1900.; Mining--Colorado--Park County--1880-1900.;...
    • [between 1880 and 1900?]
    • A giant in action, Fairplay, Colo

    • View of a gold miner running a "giant monitor" nozzle at a hydraulic placer mine in Fairplay, Park County, Colorado.
    • Fairplay (Colo.)--1880-1900.; Hydraulic mining--Colorado--Fairplay--1880-1900.; Miners--Colorado--Fairplay--1880-1900.; Mining--Colorado--Fairplay--1880-1900.
    • [between 1880 and 1900?]
    • A home in the mountain

    • A miner and a boy pose between a sluice with a grinding wheel and a cabin on Saint Peter's Grade near Home, Larimer County, Colorado. The man wears an ammunition belt and holds a gold pan.
    • Home (Colo.)--1880-1900.; Cabins--Colorado--Home--1880-1900.; Hydraulic mining--Colorado--Home--1880-1900.; Miners--Colorado--Home--1880-1900.; Mining--Colorado--Home--1880-1900.
    • [between 1880 and 1900]
    • Abandoned mine

    • Prospectors dig near an abandoned mine and a sluice in Colorado.
    • Abandoned mines--Colorado--1880-1900.; Hydraulic mining--Colorado--1880-1900.; Miners--Colorado--1880-1900.; Mining--Colorado--1880-1900.; Prospecting--Colorado--1880-1900.
    • [between 1940 and 1960]
    • Above dam, entrance to flume

    • View of the South Fork of Clear Creek, Clear Creek County, Colorado; shows a diversion dam for hydraulic gold placer mines, and the opening into a flume.
    • Clear Creek (Clear Creek County, Colo.)--1880-1900.; Clear Creek County (Colo.)--1880-1900.; Dams--Colorado--Clear Creek County--1880-1900.; Flumes--Colorado--Clear Creek County--1880-1900.; Gold mining--Colorado--Clear Creek County--1880-1900.;...
    • [between 1880 and 1900?]
    • Alma Colorado, where Hilma Hanson was born in 1877

    • This view west of Alma, (elevation, 10,353 feet) in Park County, Colorado, includes wood frame barns, sheds, false front commercial buildings, log cabins, smelting works with long wood piles, and a church. Lettering painted on commercial buildings...
    • Alma (Colo.)--1870-1880.; Mountains--Colorado--1870-1880.
    • [between 1875 and 1880]
    • 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
    • Alma, Colo.

    • View west from above the icy Middle Fork of the South Platte, to the north side of Alma, (10,353 feet) in Park County, Colorado, includes large piles of tailings from placer and hydraulic dredge mining along the river. Town consists of scattered...
    • Alma (Colo.)--1920-1930.; Mining--Colorado--Alma--1920-1930.
    • [1929]
    • Alma, Colo.

    • View southwest from above the icy Middle Fork of the South Platte, to Alma, (10353 feet) Park County, Colorado, includes large piles of tailings from placer and hydraulic dredge mining along river. Town consists of scattered wood frame residences,...
    • Alma (Colo.)--1920-1930.; Mining--Colorado--Alma--1920-1930.
    • [1929]
    • 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

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