Cynide plant of Niagara Co., Bingham Canyon, Utah from the Article THE CYANID PROCESS FOR GOLD ORES IN WESTERN AMERICA. By Thomas Tonge. from The Engineering Magazine Devoted to Industrial Progress Volume XIV October 1897 - March 1898 The Engineering Magazine Co

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Size: 3333px × 2629px
Location: United States of America
Photo credit: © Historic Illustrations / Alamy / Afripics
License: Royalty Free
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