View of an unidentified hydraulic mine near Leadville in Lake County, Colorado. A miner directs a monitor nozzle to excavate and wash gravel from the ground. Shows a metal pipe attached to the nozzle. Mountains are in the distance.
Lake County (Colo.)--1880-1900.; Hydraulic mining.; Miners.; Nozzles.
Interior view of an unidentified mine in the Cripple Creek Mining District in Teller County, Colorado. Shows the timber supports used to shore up the mine tunnel. Ore cart tracks are in the floor and miners excavate the end of the tunnel. A jacket...
Teller County (Colo.)--1900-1910.; Interiors.; Mining.