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.
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.
View of an abandoned gold placer mining pit near Breckenridge, Summit County, Colorado shows: pipes and tailings with valley and mountains in background.
Gold Run Mine, a gold placer mine near Breckenridge, Summit County, Colorado; miners operate hydraulic nozzles (monitors) fitted with rock counterbalances, miners with shovels stand inside the wash.
Gold Pan Mine, a gold placer mine near Breckenridge, Summit County, Colorado; a group of miners stand inside a small pit with a hose and vertical pipe. A bucket full of rock is brought up by chain.
Gold Pan Mine (Summit County, Colo.)--1880-1890.; Breckenridge (Colo.)--1880-1890.; Gold mining--Colorado--Breckenridge--1880-1890.; Hydraulic Mining--Colorado--Breckenridge--1880-1890.; Mining--Colorado--Breckenridge--1880-1890.
Gold Run Mine, a gold placer mine in Summit County, Colorado; miners use hydraulic nozzles (monitors) fitted with rock counterbalances, miners with shovels stand inside the wash.
Gold Run Mine, a gold placer mine in Breckenridge, Summit County, Colorado; miners use hydraulic nozzles (monitors) fitted with rock counterbalances, miners with shovels stand inside the wash; shows pipes and sluice.
Miners pose by guy derricks near the partially constructed mill at the Oro Grande Mine near Breckenridge (Summit County), Colorado. A vertical tubular boiler is nearby.
Breckenridge (Colo.)--1880-1890.; Oro Grande Mine (Summit County, Colo.)--1880-1890.; Construction--Colorado--Breckenridge--1880-1890.; Hoisting machinery--Colorado--Breckenridge--1880-1890.; Hydraulic mining--Colorado--Breckenridge--1880-1890.;...
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.
A woman and miners, with picks and gold pans, pose by the entrance to the Boss mine near Breckenridge (Summit County), Colorado. Shows a horse.
Boss Mine (Summit County, Colo.)--1880-1890.; Breckenridge (Colo.)--1880-1890.; Miners--Colorado--Breckenridge--1880-1890.; Mining--Colorado--Breckenridge--1880-1890.; Women--Colorado--Breckenridge--1880-1890.
A miner poses by a mine ore car at the Union Mine near Breckenridge (Summit County), Colorado. French Gulch is nearby.
Breckenridge (Colo.)--1870-1880.; Union Mine (Summit County, Colo.)--1870-1880.; Miners--Colorado--Breckenridge--1880-1890.; Mining--Colorado--Breckenridge--1880-1890.
[between 1880 and 1890]
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