JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, KEWEENAW COUNTY, P. 141-143, SITE ID # 420042, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.
Commodities (Major) - Copper
Deposit Type: Fissure Copper Veins
Development Status: Past Producer
Deposit Model: 96: Native Cu
Host Rock Unit: Portage Lake Volcanics
Host Rock: Basalt
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Map Reference: 47°24'56"N , 88°14'51"W
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