A group of two mines located at Imperial Heights near Michigamme. The mines worked the Proterozoic Bijiki Iron-formation unit of the Michigamme Formation.
Refs.:
Rocks & Min.: 58:108.
"Digital Geologic Map of the Penokean Continental Margin, Northern Michigan and Wisconsin", W. F. Cannon, U.S. Geological Survey Open-File Report 99-547, Reston, VA, 1999.
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Map Reference: 46°32'16"N , 88°10'16"W
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Mineral List:23 entries listed. 16 valid minerals.
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