Copper Mines in Butte, Montana from the Article THE WORLD'S SUPPLY OF COPPER. By Frederick H. Hatch. from The Engineering Magazine Devoted to Industrial Progress Volume XVIII 1899-1900 The Engineering Magazine Co

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Size: 6730px × 4470px
Location: USA
Photo credit: © Historic Illustrations / Alamy / Afripics
License: Licensed
Model Released: No

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