Auburn Mine, showing depth of stripping shaft in background from the Article CHARACTERISTIC AMERICAN METAL MINES. THE MINES OF THE MINNESOTA IRON COMPANY. By Horace V. Winche11. from The Engineering Magazine Devoted to Industrial Progress Volume XI October 1897 The Engineering Magazine Co

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Size: 3516px × 2417px
Location: United States of America
Photo credit: © Historic Illustrations / Alamy / Afripics
License: Royalty Free
Model Released: No

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