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USA / Michigan / Ontonagon Co.
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Ontonagon Co., Michigan, US
Useful for image descriptions and collection inscriptions
Important: Before entering this or any other place of discovery you should have a permission of the operator and/or owner. Likewise it is to be respected that necessary safety precautions are kept during the visit.
Minerals (Count: 70)
Rocks (Count: 6)
Reference- and Source indication, Literature
Van Hise & Leith (1911) US Geol. Sur. Monograph 52, Map 49.
Butler, B.S. & Burbank, W.S. (1929): The Copper Deposits of Michigan.
Copper Range Co. & Hubbard, H., unpublished (1968): Bedrock Geology Map of the Rockland (NW 1/4) Quadrangle, Oontonagon Country, Michigan. (U.S.G.S.)
White, W.S. (1968): The Native-Copper Deposits of northern Michigan.
Lee A. Miller (1986): Index & Reference Guide for the Copper Mining Industry of Michigan Vol III Ontonagon County.
Wilson,M.L. & Dyl,S.J. (1992). The Michigan Copper Country. The Mineral. Record, Vol.23, H.2, S.5-72.
Johnson, A.M. & Groth, E.H. (1998): Inventory of underground Mines, Ontonagon Country.
Heinrich & Robinson (2004): Mineralogy of Michigan.