Geological Survey of Michigan, Vol. 5: Upper Peninsula, 1881-1844, Lower Peninsula, 1885-1893, Part I. Upper Peninsula; Iron and Copper Regions, Part II. Lower Peninsula; Deep Borings (Classic Reprint)
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Geological Survey of Michigan, Vol. 5: Upper Peninsula, 1881-1844, Lower Peninsula, 1885-1893, Part I. Upper Peninsula; Iron and Copper Regions, Part II. Lower Peninsula; Deep Borings (Classic Reprint)
