You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Barrett Chute, south end of Calabogie Lake. Near pool in Madawaska river bed. Remove constraint Place: Barrett Chute, south end of Calabogie Lake. Near pool in Madawaska river bed. Place Ontario Remove constraint Place: Ontario Place Renfrew Remove constraint Place: Renfrew Topic Poales Remove constraint Topic: Poales