1973 N. King Huber Isle Royale Geologic History

Glacial and Postglacial Geologic History of Isle Royale National Park, Michigan by N. King Huber. Geological Survey Professional Paper 754-A, prepared in cooperation with the National Park Service. Published by the United States Government Printing Office, Washington, 1973. Softcover booklet featuring a map of the island on the cover. Includes illustrations, maps, and diagrams. Shows minor toning and edge wear consistent with age. Original price sticker of $1.50 on front cover.