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    • Miners with monitor nozzle

    • 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
    • The nozzle in its foundation

    • The nozzle in its foundation

    • A man peers through a hole from within a large nozzle connected to a pipe in a stone and masonry foundation beside Clear Creek near Idaho Springs in Clear Creek County, Colorado. The site is part of a pipeline for the Stanley Mine. Shows timbers, a...

    • Nozzles--Colorado--Clear Creek County--1890-1900.; Clear Creek County (Colo.)--1890-1900.; Stanley Mine (Clear Creek County, Colo.)--1890-1900.; Mining--Colorado--Clear Creek County--1890-1900.; Pipes (Conduits)--Colorado--Clear Creek...

    • [1894]
    • Rifle Fire Department

    • Rifle Fire Department

    • Firemen pose in Rifle (Garfield County), Colorado, with a nozzle. Men's uniforms include kepi hats, white leather belts, and button bib shirts; embroidery depicts axes, hats, and letters: "Rifle."

    • Rifle (Colo.)--1900-1920.; Fire fighters--Colorado--Rifle--1900-1920.

    • [between 1900 and 1920?]
    • Rifle Fire Department

    • Rifle Fire Department

    • Firemen pose in snow in Rifle (Garfield County), Colorado, with a nozzle and hose cart. Men's uniforms include kepi hats, white leather belts, and button front shirts; embroidery depicts axes, hats, and letters: "Rifle."

    • Rifle (Colo.)--1900-1920.; Fire engines & equipment--Colorado--Rifle--1900-1920.; Fire fighters--Colorado--Rifle--1900-1920.

    • [between 1900 and 1920?]
    • Placer mining La Belle, NM

    • Placer mining La Belle, NM

    • Miners use a hydraulic monitor nozzle at a placer mine operation in La Belle, New Mexico. Large rocks line a sluice nearby.

    • La Belle (N.M.)--1890-1910.; Hydraulic mining--New Mexico--La Belle--1890-1910.; Miners--New Mexico--La Belle--1890-1910.; Mining--New Mexico--La Belle--1890-1910.

    • [between 1890 and 1910?]
    • 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]
    • Keystone placer just below Telluride

    • Keystone placer just below Telluride

    • Keystone, a gold placer mine in San Miguel County, Colorado. A group of well-dressed men and women with a horse drawn wagon, stand on a hillside overlooking a mining operation. Water gushes out of a hydraulic nozzle (monitor) into a pit surrounded...

    • San Miguel County (Colo.)--1880-1890.; Gold mining--Colorado--San Miguel County--1880-1890.; Hydraulic Mining--Colorado--San Miguel County--1880-1890.; Mining--Colorado--San Miguel County--1880-1890.

    • [between 1880 and 1890?]
    • Alma, Colo. placer mining

    • 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
    • View of Gold Run pit

    • View of Gold Run pit

    • A miner uses a hydraulic nozzle (monitor) fitted with a rock counterbalance in the pit of the Gold Run Mine, a gold placer mine near Breckenridge, Summit County, Colorado.

    • Gold Run Mine (Breckenridge, Colo.); Breckenridge (Colo.)--1880-1890.; Gold miners--Colorado--Breckenridge--1880-1890.; Gold mining--Colorado--Breckenridge--1880-1890.; Hydraulic Mining--Colorado--Breckenridge--1880-1890.;...

    • [between 1880 and 1890?]
    • Gold Run Mine dump

    • Gold Run Mine dump

    • Gold Run Mine, a gold placer mine near Breckenridge, Summit County, Colorado; a miner uses a hydraulic nozzle (monitor) fitted with a rock counterbalance; water flows out of a sluice.

    • Gold Run Mine (Breckenridge, Colo.)--1880-1890.; Tailings embankments--Colorado--Breckenridge--1880-1890.; Breckenridge (Colo.)--1880-1890.; Gold miners--Colorado--Breckenridge--1880-1890.; Hydraulic Mining--Colorado--Breckenridge--1880-1890.;...

    • [between 1880 and 1890?]
    • Placer mining, Mont.

    • Placer mining, Mont.

    • Two miners in a gold placer mine pit, Montana; one operates a nozzle (monitor) and one uses a shovel. Shows sluice boxes in pit, a woman with a horse stands on the rim.

    • Gold mining--Montana--1880-1890.; Hydraulic Mining--Montana--1880-1890.; Mining--Montana--1880-1890.; Women--Montana--1880-1890.

    • [between 1880 and 1890?]
    • Hydraulic Mining

    • Hydraulic Mining

    • View of mined slopes in Colorado; man in wide brim hat uses a nozzle for hydraulic placer gold mining, shows frame buildings.

    • Gold mining--Colorado--1890-1910.; Hydraulic mining--Colorado--1890-1910.; Miners--Colorado--1890-1910.; Mining--Colorado--1890-1910.

    • [between 1890 and 1910?]
    • Placer mining at Alma

    • Placer mining at Alma

    • Gold miners pose with a wheelbarrow at a hydraulic mine in Alma, Park County, Colorado; bluffs in the background have erosion and falling water. A jet of water issues from a "monitor" nozzle.

    • Alma (Colo.)--1880-1900.; Gold mining--Colorado--Alma--1880-1900.; Hydraulic mining--Colorado--Alma--1880-1900.; Miners--Colorado--Alma--1880-1900.; Mining--Colorado--Alma--1880-1900.

    • [between 1880 and 1900?]
    • Placer mining, Colorado

    • Placer mining, Colorado

    • View of a gold mine operation in Colorado; shows a miner running a Hydraulic Chief "monitor" nozzle, a jet of water, and eroded embankments.

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

    • [between 1860 and 1890?]
    • Gold mining - Granite, Colorado

    • Gold mining - Granite, Colorado

    • View of placer gold mine in the Arkansas River flood plain, Granite, Chaffee County, Colorado; shows a miner running a hydraulic 'monitor' nozzle. Embankments and hills are in the background.

    • Granite (Colo.)--1890-1900.; Hydraulic mining--Colorado--Granite--1890-1900.; Mining--Colorado--Granite--1890-1900.

    • [between 1890 and 1900?]
    • Spanish Gulch Costilla County

    • 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 mining Alma Colo

    • Placer mining Alma Colo

    • Gold miners pose at a hydraulic mine in Alma, Park County, Colorado; bluffs in the background have erosion and falling water. A jet of water issues from a "monitor" nozzle; a flume is in the foreground.

    • Alma (Colo.)--1880-1900.; Flumes--Colorado--Park County--1880-1900.; Gold mining--Colorado--Park County--1880-1900.; Hydraulic mining--Colorado--Park County--1880-1900.; Miners--Colorado--Park County--1880-1900.; Mining--Colorado--Park...

    • [between 1880 and 1900?]
    • Hydraulic mining, Park County

    • Hydraulic mining, Park County

    • View of a gold placer mine in Park County, Colorado; shows a steam [?] powered crane with lettering: "Snowstorm Hydraulic Co.," and a boulder in its grasp. Across a stream, on tailings, a miner runs a "monitor" nozzle.

    • Park County (Colo.)--1880-1900.; Gold mining--Colorado--Park County--1880-1900.; Hoisting machinery--Colorado--Park County--1880-1900.; Hydraulic mining--Colorado--Park County--1880-1900.; Miners--Colorado--Park County--1880-1900.;...

    • [between 1880 and 1900?]
    • A giant in action, Fairplay, Colo

    • 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?]
    • Swift and Company fire crew

    • Swift and Company fire crew

    • Group portrait of Swift and Company firemen in Denver, Colorado; shows men in fire fighting gear including hats and slickers. They carry a nozzle, an axe, belts and tanks.

    • Swift & Company--People--1910-1920.; Denver (Colo.)--1910-1920.; Fire fighters--Colorado--Denver--1910-1920.; Meat industry--Colorado--Denver--1910-1920.

    • 1917?
    • Steven's Hydraulic Mines, near Oro City

    • Steven's Hydraulic Mines, near Oro City

    • Miners stand near Steven's Hydraulic Mine near Oro City (Leadville), Lake County, Colorado. The men use a hydraulic nozzle or monitor to spray water into the mine pit.

    • Oro City (Colo.)--1870-1880.; Hydraulic mining--Colorado--Oro City--1870-1880.; Miners--Colorado--Oro City--1870-1880.; Mining--Colorado--Oro City--1870-1880.

    • 1877
    • Placer mining Leadville

    • Placer mining Leadville

    • Miners stand near a hydraulic nozzle or monitor as they survey a placer mining operation near Leadville, Lake County, Colorado.

    • Leadville (Colo.)--1880-1890.; Hydraulic mining--Colorado--Leadville--1880-1890.; Miners--Colorado--Leadville--1880-1890.; Mining--Colorado--Leadville--1880-1890.

    • [between 1882 and 1889]
    • Hydraulic mining Leadville

    • Hydraulic mining Leadville

    • A miner stands in a ravine and aims a hydraulic nozzle or monitor as part of a placer mining operation near Leadville, Lake County, Colorado.

    • Leadville (Colo.)--1880-1890.; Hydraulic mining--Colorado--Leadville--1880-1890.; Miners--Colorado--Leadville--1880-1890.; Mining--Colorado--Leadville--1880-1890.

    • [between 1880 and 1890]
    • Placer miners

    • Placer miners

    • Men and women pose near a placer mining operation in San Miguel County, Colorado. One man holds a gold pan. Miners aim a nozzle or monitor at the mine pit nearby.

    • San Miguel County (Colo.)--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Miners--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Women--Colorado--San Miguel County--1880-1900.

    • [between 1880 and 1900]
    • American Gulch

    • American Gulch

    • A miner aims a nozzle or monitor as part of a placer mining operation in American Gulch, Summit County, Colorado. A Wapiti Mining Company building is nearby.

    • Summit County (Colo.)--1880-1900.; Hydraulic mining--Colorado--Summit County--1880-1900.; Miners--Colorado--Summit County--1880-1900.; Mining--Colorado--Summit County--1880-1900.

    • [between 1880 and 1900]
    • Keystone Placer Mine. Giant at work.

    • 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?]
    • Grant Smelter Leadville

    • Grant Smelter Leadville

    • View of the frame buildings of the Grant Smelter in Leadville, Lake County, Colorado; shows tailings, a hydraulic mining claim with a tent, miners and a monitor nozzle.

    • Leadville (Colo.)--1880-1900.; Hydraulic mining--Colorado--Leadville--1880-1900.; Ore industry--Colorado--Leadville--1880-1900.

    • [between 1882 and 1900?]
    • Hydraulic gold mining in Montana

    • Hydraulic gold mining in Montana

    • Miners operate a hose with a monitor nozzle on a stream at a placer gold operation in Montana; a man in a suit looks on.

    • Gold mining--Montana--1870-1880.; Hydraulic mining--Montana--1870-1880.; Miners--Montana--1870-1880.; Mining--Montana--1870-1880.

    • [between 1872 and 1878]
    • Hydraulic mining, Virginia City M.T.

    • Hydraulic mining, Virginia City M.T.

    • View of a hydraulic mining operation in a stream bed in Virginia City, Montana. Shows a hose with a monitor nozzle, sluices, and a flume; water falls from ground level.

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

    • [between 1872 and 1878]
    • Colo. City Vol. Hose Co. team

    • Colo. City Vol. Hose Co. team

    • Colorado City Hose Team pose in front of the diagonal batten door outside the brick fire station, South Twenty-sixth and Cucharas streets, El Paso County, Colorado. The men stand wearing dark underwear shirts and shorts with arms crossed and their...

    • Colorado City (Colo.)--1900-1910.; Fire fighters--Colorado--Colorado City--1900-1910.; Men--Colorado--Colorado City--1900-1910.

    • September 1901
    • At fire of 10/23/66

    • At fire of 10/23/66

    • During a fire in Brighton, Colorado, the backs of two firemen are in the foreground; letters on one's coat read "West Adams County Fire Dept," and on his hat "WAC;" the other's reads "BFD." Both face a crane that reaches to the top of a brick...

    • Brighton (Colo.)--1960-1970.; Fire fighters--Colorado--Brighton--1960-1970.; Fires--Colorado--Brighton--1960-1970.

    • 1966 [October 23]
    • Keystone Placer Mine near Telluride the giant at work

    • Keystone Placer Mine near Telluride the giant at work

    • A miner uses a monitor nozzle at the Keystone Placer Mine near Telluride in San Miguel County, Colorado. A large pipe is 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?]
    • Keystone Placer Mine, giant at work

    • Keystone Placer Mine, giant at work

    • View of mining operations at Keystone Mine, San Miguel County, Colorado. Shows a large water pipe on a log and hewn plank support as a hydraulic hose with a monitor nozzle sprays the hillside. A sluice box carries run-off down the slope. Shows a...

    • Keystone Mine (San Miguel County, Colo.)--1880-1890.; San Miguel County (Colo.)--1880-1890.; Hydraulic mining--Colorado--San Miguel County--1880-1890.; Mining--Colorado--San Miguel County--1880-1890.; Penstocks--Colorado--San Miguel...

    • [between 1880 and 1890?]
    • Keystone Placer Mine near Telluride, the giant at work

    • Keystone Placer Mine near Telluride, the giant at work

    • View of the Keystone Placer Mine near Telluride, (San Miguel County), Colorado; a miner wears a long coat and sprays an excavation site with a monitor nozzle fed by a segmented transport pipe.

    • Nozzles--Colorado--San Miguel County--1880-1890.; Keystone Mine (San Miguel County, Colo.)--1880-1890.; San Miguel County (Colo.)--1880-1890.; Hydraulic mining--Colorado--San Miguel County--1880-1890.; Miners--Colorado--San Miguel...

    • [between 1880 and 1890?]
    • Giant at work, Cottonwood Placer Co.

    • 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
    • Giant at work, Cottonwood Placer Co.

    • 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
    • Washing with a hose

    • 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]
    • Washing with a hose

    • 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
    • Carrying a hose

    • Carrying a hose

    • Men carry a hose and nozzle on their shoulders in probably Montrose County, Colorado.

    • Montrose County (Colo.)--1890-1900.; Hoses--Colorado--Montrose County--1890-1900.; Hydraulic mining--Colorado--Montrose County--1890-1900.; Miners--Colorado--Montrose County--1890-1900.; Mining--Colorado--Montrose County--1890-1900.

    • 1897 July 17
    • Giant at work Cottonwood Placer Co.

    • 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
    • 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?]
    • 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]
    • Fire Station No. 1, Denver

    • Fire Station No. 1, Denver

    • View of a fire truck at Fire Station Number One at 1375 Tremont Place in downtown Denver, Colorado; the vehicle has lanterns, a chrome nozzle, and a bell.

    • Denver (Colo.). Fire Department.--Buildings--1920-1930.; Denver (Colo.). Fire Department.--Equipment & supplies--1920-1930.; Denver (Colo.)--1920-1930.; Fire engines & equipment--Colorado--Denver--1920-1930.; Fire...

    • [between 1920 and 1930?]
    • Fire Station No. 1, Denver

    • Fire Station No. 1, Denver

    • View of a fireman in a fire truck at Fire Station Number One at 1375 Tremont Place in downtown Denver, Colorado; the vehicle has pinstripes, lanterns, a chrome nozzle, and a bell.

    • Denver (Colo.). Fire Department.--Buildings--1920-1930.; Denver (Colo.). Fire Department.--Equipment & supplies--1920-1930.; Denver (Colo.)--1920-1930.; Fire engines & equipment--Colorado--Denver--1920-1930.; Fire...

    • [between 1920 and 1930?]
    • Fire truck close up

    • Fire truck close up

    • View of a fire truck in Denver, Colorado; the vehicle has pinstripes, a lantern, and a chrome nozzle, tank, and valves.

    • Denver (Colo.)--1930-1940.; Fire engines & equipment--Colorado--Denver--1930-1940.

    • [between 1930 and 1940?]
    • Idaho Springs, Miner Street

    • Idaho Springs, Miner Street

    • The view along Miner Street in Idaho Springs, Colorado, shows a large group of men watching firefighters extinguish a blaze. Smoke wafts across the street as the water plume from the hose nozzle shoots toward the second story of a building. A,...

    • Idaho Springs (Colo.)--1900-1920.; Fires--Colorado--Idaho Springs--1900-1920.

    • [between 1903 and 1918]
    • Drilling in contest at Longmont, Colorado on Main Street

    • Drilling in contest at Longmont, Colorado on Main Street

    • Greeley firemen in Longmont, Colorado, pose in undershirts, leggings, shorts and cloth caps, holding the leads of their hose wagon. One holds a nozzle. Men in suits and tophats or bowlers are behind them; brick storefronts are in the background....

    • Greeley (Colo.)--1880-1890.; Fire fighters--Colorado--Greeley--1880-1890.

    • [between 1880 and 1890?]

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