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You searched for: Type Still Image Remove constraint Type: Still Image Subject Headings Bridges Minnesota Remove constraint Subject Headings: Bridges Minnesota Subject Headings Bridges Remove constraint Subject Headings: Bridges Contributor University of Minnesota Duluth, Kathryn A. Martin Library, NEMHC Collections Remove constraint Contributor: University of Minnesota Duluth, Kathryn A. Martin Library, NEMHC Collections

Minnesota Digital Library

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1. Bridge Building the First Span, Duluth, Minnesota

2. Constructing foundation for aerial bridge, Duluth, Minnesota

3. Progressive Port, Duluth, Minnesota

4. St. Louis River bridge construction, Duluth, Minnesota

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