Date: | 1898 |
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Description: | A hydrographic map of Lake Geneva that includes 15 cross sections of the depths at various points as well as a line running the length of the lake from Gen... |
Date: | 1898 |
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Description: | This map shows the contour depths of Lake Beulah, Booth Lake, and Army Lake (labeled East Troy Lake on the map) in Walworth County, Wisconsin, and includes... |
Date: | 1898 |
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Description: | This map shows the contour depths of Delavan Lake and the Lauderdale Lakes in Walworth County, Wisconsin, and includes nine cross sections of the lakes. Ro... |
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