You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Along shore of Lake Superior, east end of Agate Harbor. Remove constraint Place: Along shore of Lake Superior, east end of Agate Harbor. Place Michigan Remove constraint Place: Michigan Place North America Remove constraint Place: North America Topic Actinogyra Remove constraint Topic: Actinogyra Topic Lichens Remove constraint Topic: Lichens Type still image Remove constraint Type: still image