Denver Public Library Western History/Genealogy Digital Collections

- Capitol Hydraulic Company incorporated by the Legislature of Kansas Territory, Feb. 11th, 1860 : this certifies that ...
- Water supply--Colorado--1860-1870.; Capitol Hydraulic Company (Denver, Colo.); Ditches--Colorado--To 1876.; Denver (Colo.)--Maps--1860.
- 1860?
- 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
- 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]
- Seeking Gold with Water Pressure.
- A man stands near a high power water hose as part of a hydraulic mining operation in California. The man stands in a deep pit surrounded by a rocky landscape.
- Gold miners--California--1890-1920.; Gold mining--California--1890-1920.; Hydraulic mining--California--1890-1920.
- [between 1890 and 1915]
- Clear Creek Series - Russell Gulch
- Gold miners aim water jets at embankments in this Russell Gulch, Gilpin County, Colorado placer mine; men watch the hydraulic mining operation.
- Russell Gulch (Colo.)--1860-1870.; Hydraulic mining--Colorado--Russell Gulch--1860-1870.; Mining--Colorado--Russell Gulch--1860-1870.
- [between 1860 and 1970]
- 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]
- Rollinsville, Colorado
- A hydraulic mine juts into a body of water, possibly near Rollinsille, Colorado.
- Rollinsville (Colo.)--1900-1920.; Hydraulic mining--Colorado--Rollinsville--1900-1920.
- [between 1900 and 1920?]
- 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?]
- Hydraulic mining. Miners piping off top dirt
- View of a man using "Hydraulic Chief" type nozzles to aim jets of water at an eroded bluff, in (probably) California. Another man stoops in the gold mine, wearing a raincoat.
- Hydraulic mining--California--1860-1880.; Miners--1910-1920.; Mining--California--1860-1880.
- [between 1865 and 1880?]
- Hendrie & Bolthoff Manufacturing & Supply Company
- Men and children, probably employees, pose on and near horse-drawn wagons at the Hendrie and Bolthoff Manufacturing and Supply Company on the corner of 17th (Seventeenth) and Wynkoop Streets in downtown Denver, Colorado. The four-story brick...
- Hendrie & Bolthoff Manufacturing & Supply Co. (Denver, Colo.)--1900-1910.; Denver (Colo.)--1900-1910.; Carts & wagons--Colorado--Denver--1900-1910.; Commercial facilities--Colorado--Denver--1900-1910.; Industry--Colorado--Denver--1900-1910.;...
- [between 1902 and 1910?]
- 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 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?]
- Lone tree near here left standing on bed rocks after hydraulic mining
- View of a pinnacle rock formation with erosion from hydraulic mining; trees and holes dot the area.
- Erosion--1880-1900.; Hydraulic mining--1880-1900.; Mining--1880-1900.; Rock formations--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?]
- 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?]
- Hydraulic mining near Breckenridge, Colorado
- View of hydraulic gold placer mining, near Breckenridge, Summit County, Colorado; shows pipes, water jets, flumes, buildings, and mountains.
- Breckenridge (Colo.)--1890-1900.; Buildings--Colorado--Breckenridge--1890-1900.; Flumes--Colorado--Breckenridge--1890-1900.; Hydraulic mining--Colorado--Breckenridge--1890-1900.; Mining--Colorado--Breckenridge--1890-1900.
- July, 1897
- Hydraulic placer mining class
- View of a Public Works Administration hydraulic gold mining class, in Denver, Colorado; shows men with a rocker sluice and gold pans. One wears high boots, another smokes a cigarette.
- United States. Public Works Administration.--1930-1940.; Sluices--Colorado--Denver--1930-1940.; Denver (Colo.)--1930-1940.; Gold mining--Colorado--Denver--1930-1940.; Hydraulic mining--Colorado--Denver--1930-1940.;...
- [between 1930 and 1940?]
- Hydraulic placer mining class
- View of a Public Works Administration hydraulic gold mining class, in Denver, Colorado; shows men with a rocker sluice and gold pans. One wears high boots and uses a shovel.
- United States. Public Works Administration.--1930-1940.; Denver (Colo.)--1930-1940.; Gold mining--Colorado--Denver--1930-1940.; Hydraulic mining--Colorado--Denver--1930-1940.; Miners--Colorado--Denver--1930-1940.; Mining...
- [between 1930 and 1940?]
- Three monitors at work undermining the banks and sluicing gravel and sand to the hydraulic fill dam being constructed by the Traveler's Insurance Co. at Santa Maria Lake
- Hydraulic gold placer mining in Mineral County, Colorado, consists of monitors washing soil into a sluice. The tailings were used by the Traveler's Insurance Company for construction of a dam augmenting Santa Maria Lake.
- Sluices--Colorado--Mineral County--1910-1920.; Mineral County (Colo.)--1910-1920.; Santa Maria Lake Dam (Colo.)--1910-1920.; Gold mining--Colorado--Mineral County--1910-1920.; Hydraulic mining--Colorado--Mineral County--1910-1920.;...
- 1911
- 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]
- Hydraulic mining, Virginia City, Montana
- View of a hydraulic mining operation with men with hoses and monitor nozzles, Virginia City, Montana. Shows one story frame buildings and a rock and wood strewn gully.
- Virginia City (Mont.)--1870-1880.; Hydraulic Mining--Montana--Virginia City--1870-1880.
- between 1872 and 1878
- Hydraulic mining near Virginia City, Montana
- View of a hydraulic mining operation in Virginia City, Montana; shows wooden sluices, a hose on a reel, rock tailings, a hoist and a section of the sluice or flume, and abandoned headgates.
- Sluices--Montana--Virginia City--1870-1880.; Virginia City (Mont.)--1870-1880.; Flumes--Montana--Virginia City--1870-1880.; Hydraulic mining--Montana--Virginia City--1870-1880.; Mining--Montana--Virginia City--1870-1880.
- [between 1872 and 1878]
- Denver Municipal Facts: Volume 1 Number 4, 1909 March 13
- 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.
- 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.
- 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?]
- 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]
- 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]
- Cooley Bros. dredge, gen. view dragline
- View of a dragline crane and bucket at a hydraulic mining site on probably Beaver Creek in Park County, Colorado. Shows parked automobile, gabled buildings, dredge facilities, wooden sheds and water.
- Park County (Colo.)--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
- 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
- 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.
- 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.
- View of iron beams, cables, and pulleys on the South Platte Dredging Company hydraulic placer gold mining dredge near Fairplay (Park County), Colorado.
- South Platte Dredging Co.--Equipment & supplies--1930-1950.; Fairplay (Colo.)--1930-1950.; Hoisting machinery--Colorado--Fairplay--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.; Mining--Colorado--Fairplay--1930-1950.
- [between 1930 and 1950?]
- 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.
- 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.
- 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.
- 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.
- 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 Dr. Co., tragles [sic.]
- Water flows from pipes into long sluice boxes 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.; Mining machinery--Parts--Colorado--Fairplay--1930-1950.; Fairplay (Colo.)--1930-1950.; Hydraulic mining--Colorado--Fairplay--1930-1950.; Interiors--Colorado--Fairplay--1930-1950.;...
- [between 1930 and 1950?]
- 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.
- 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., 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.
- 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.
- 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.
- 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?]
- 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?]
- Keystone placer mine giant at work
- View of mining operations at the Keystone Mine in San Miguel County, Colorado. Shows sluice boxes and a large pipe with hydraulic nozzles.
- 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.; Mining--Colorado--San Miguel County--1880-1900.
- [between 1882 and 1900?]
- Placer mining on the San Miguel River
- View of mining operations along the San Miguel River in San Miguel County, Colorado. Plumes of water emerge from pipes with hydraulic nozzles (monitors).
- San Miguel County (Colo.)--1880-1900.; San Miguel River (Colo.)--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Rivers--Colorado--San Miguel County--1880-1900.
- [between 1882 and 1900?]
- Seeking Gold with Water Pressure.
- A man leans over a wooden sluice in California. Rocks line the outside of the wood boards that create the sluice. A metal pipe rests on the wood.
- Gold miners--California--1890-1920.; Gold mining--California--1890-1920.; Hydraulic mining--California--1890-1920.
- [between 1890 and 1915]
- Routt county
- Several miners work a gold placer mine near Hahns Peak, Routt County, Colorado. Four men use hydraulic nozzles (monitors), fitted with rock counterbalances. Shows men with shovels, a wheelbarrow, and on horseback. One man wears a suit and hat,...
- Hahns Peak (Colo.)--1870-1880.; Gold Mining--Colorado--Hahns Peak--1870-1880.; Hydraulic Mining--Colorado--Hahns Peak--1870-1880.; Mining--Colorado--Hahns Peak--1870-1880.
- [1870-1880?]