You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Keweenaw Remove constraint Place: Keweenaw Place Passage Island, at end of boat-house cove, Isle Royale National Park Remove constraint Place: Passage Island, at end of boat-house cove, Isle Royale National Park Place USA Remove constraint Place: USA Topic Botrychium Remove constraint Topic: Botrychium Topic Plantae Remove constraint Topic: Plantae Type still image Remove constraint Type: still image