Date: | 1923 |
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Description: | This map shows the movement of stone to cities along the Great Lakes. Portions of Minnesota, Iowa, Wisconsin, Illinois, Indiana, Ohio, Michigan, New York, ... |
Date: | 06 01 1900 |
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Description: | This map shows the the locations of different kinds of clay and shales throughout the state of Wisconsin. Includes a colored legend of types of clay and sh... |
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