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Filter: Categories of Wisconsin Historical Images
Filter: FORMAT_TYPE of prints, fine-art
Filter: Creator Name of United States. Army. Corps of Engineers.
| Date: | 1926 |
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| Description: | This blueprint map shows Manitowoc Harbor with depths represented by soundings. The upper right corner includes a "Description of Bench Marks". The map als... |
| Date: | 01 01 1959 |
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| Description: | This map shows many of the rivers, dams, bays, harbors, lakes, and canals. It includes an index of authorized federal project, both for navigation and floo... |
| Date: | 1873 |
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| Description: | This blueprint map shows water depths by soundings and isolines. To the top left is Duluth, Minnesota. To the bottom right is Superior City, Wisconsin. The... |
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