1800s Archive · Machinery & technology

Stamp mill and gold concentrator, Ouray, Colo., U.S.A.

Ouray, Colorado · 1898

Stamp mill and gold concentrator, Ouray, Colo., U.S.A., Ouray, Colorado, 1898
Stamp mill and gold concentrator, Ouray, Colo., U.S.A., Ouray, Colorado, 1898. Machinery & technology — The 1800s Archive, from the Library of Congress record.

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