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Calumet & Hecla Smelter

Petersen, Max S.
Arthur Lakes Library
Russell L. and Lyn Wood Mining History Archive
United States. Bureau of Mines
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Abstract
A man stands leaning on a railed flat bed trailer holding copper ingots from the Calumet and Hecla smelter. The Calumet & Hecla Consolidated Copper Company was one of the largest copper producers in the US.
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