![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.](https://quod.lib.umich.edu/cgi/i/image/api/thumb/clark1ic/003063750/39015091897234/!250,250)
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.
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. doc., 30th Cong., 1st session, no. 57.
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