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  • All fields: leeching
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    • Yates shaft, mill & cyanide group, Homestake Mining Co., Lead, So. Dak.

    • View of the Yates shaft group includes the shafthouse, the mill, and the cyanide leeching plant, Homestake mine, Lead, South Dakota.
    • Homestake Mining Company--Facilities--1940-1950.; Mine buildings--South Dakota--Lead--1940-1950.; Homestake Mine (S.D.)--1940-1950.; Lead (S.D.)--1940-1950.; Mills--South Dakota--Lead--1940-1950.; Mining--South Dakota--Lead--1940-1950.
    • [between 1941 and 1950?]
    • Leaching dept from dam

    • View of a pipe that carries water and tailings to the dam near the Golden Cycle Mill in El Paso County, Colorado. The leeching tank building and the comminuter building are nearby.
    • Golden Cycle Corporation--1930-1940.; Leaching--Colorado--El Paso County--1930-1940.; Mills--Colorado--El Paso County--1930-1940.; Mining--Colorado--El Paso County--1930-1940.; Pipelines--Colorado--El Paso County--1930-1940.; Smelters--Colorado--El...
    • August, 1932

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