A wooden drum from a "slack-belt" hoist (widely used in Caribou mines during the early mining days) and a boiler that supplied steam to activate the hoist and pumps, stand in the foreground on a hill near Caribou in Boulder County, Colorado. Pine...
Mining equipment--1940-1950.; Boulder County (Colo.)--1940-1950.; Caribou (Colo.)--1940-1950.; Boilers--1940-1950.; Hoisting machinery--1940-1950.
The large shafthouse of the Kekionga Mine stands in the foreground west of the Magnolia mining district in Boulder County, Colorado. A wood wheel, possibly a hoist, is at the top of a square platform near the shafthouse. The platform is supported...
Mine buildings--Colorado--Magnolia--1940-1950.; Boulder County (Colo.)--1940-1950.; Magnolia (Colo.)--1940-1950.; Hoisting machinery--1940-1950.
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