Collection: Ann Arbor, Michigan: University of Michigan Library / Topic: Geology -- Mississippi River Valley. - Arab Americans and the Automobile: Voices from the Factory - Michigan Memories Search Results

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1. Report of a geological survey of Wisconsin, Iowa, and Minnesota; and incidentally of a portion of Nebraska Territory. Made under instructions from the United States Treasury department. By David Dale Owen, United States geologist.

2. Report of a geological survey of the upper Mississippi lead region,