You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Isle Royale National Park, Greenstone Ridge above Chickenbone Lake. Remove constraint Place: Isle Royale National Park, Greenstone Ridge above Chickenbone Lake. Place Keweenaw Remove constraint Place: Keweenaw Place USA Remove constraint Place: USA Topic Poa Remove constraint Topic: Poa Type still image Remove constraint Type: still image