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Geology
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Michigan
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1848
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1. Provisional geological map of part of the Chippeway sand district of Wisconsin with part of Iowa & of Minnesota Terratory [sic]: to illustrate the report of a geological reconnoissance made in 1847; by David Dale Owen.
1848. Owen, David Dale, 1807-1860. Shows area north and west of Wisconsin River watershed and south and east of the Saint Louis River and the upper Mississippi River. From: Senate ex...