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Filter: Subject of Railroads
Filter: Creator Name of United States. Board of Engineers for Rivers and Harbors.
| Date: | 1923 |
|---|---|
| Description: | This map shows the movement of iron ore along the Great Lakes. Portions of Minnesota, Iowa, Wisconsin, Illinois, Indiana, Ohio, Michigan, New York, Vermont... |
| Date: | 1923 |
|---|---|
| Description: | This map shows portions of Minnesota, Iowa, Wisconsin, Illinois, Indiana, Ohio, Michigan, New York, Vermont, Massachusetts, Connecticut, Ontario, and Quebe... |
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