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How North Shore rivers show us their geologic history

Cascade River
Cascade River

20140725karengran.mp323.29 MB

Ann Possis spoke July 25 with Dr. Karen Gran, a geology professor at UMD, about North Shore rivers and their history. She explained what can be seen and how that history affects these rivers today. She gave a presentation the next day at Sugarloaf Cove Nature Center in Schroeder.