Date: | 1844 |
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Description: | A hand-colored map and chart showing a geological cross-section from Rockingham, in present-day Scott County, Iowa, through Blue Mounds to the Wisconsin Ri... |
Date: | 1852 |
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Description: | Hand-colored maps and a series of geological cross sections of the Mississippi River between the Falls of St. Anthony and the mouth of the Wisconsin River ... |
Date: | 1847 |
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Description: | This hand-colored map shows area north and west of Wisconsin River and south and east of Saint Louis and upper Mississippi Rivers. |
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