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By Mail 25970 Red Jacket Road PO Box 471 Calumet, MI 49913 By Phone General Public (906) 337-3168 Direct Staff Extensions (906) 337-1104 By Fax (906) 337-3169
By Email For general park information or For specific research questions related to Keweenaw history
Did You Know? The largest known quantities in the world of pure, native copper were found on Michigan's Keweenaw Peninsula. In some cases, the deposits were up to 97% pure, requiring little chemical processing to produce ingots of pure copper.
Last Updated: March 21, 2007 at 14:19 EST