A copper mine, opened in 1952. Owned by Northern Copper Co. Prior owner was Echo Bay Mines. Reopened 1985.
Refs.:
Rocks & Min.: 58:112
Rocks & Min.: 61:345
Rocks & Min.: 74:160-176
Min.Rec.: 23:64
Minerals Today (Jan 1990): 341
Heinrich, Mineralogy of Michigan (1976).
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Map Reference: 46°45'N , 89°33'W
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