Date: | 1839 |
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Description: | This map, one of a series made by Thomas Jefferson Cram of the U.S. Topographical Engineers from personal surveys, covers the area from Green Bay to the ju... |
Date: | 1839 |
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Description: | This map shows the geological makeup of the valley in red, yellow, and green, the Mississippi River, and the location of Fort Crawford. The geology on the ... |
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