You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Canyon at NW corner of Cavern L., 16 km NNW of Dorion Station Remove constraint Place: Canyon at NW corner of Cavern L., 16 km NNW of Dorion Station Place North America Remove constraint Place: North America Place Thunder Bay Remove constraint Place: Thunder Bay Topic Plantae Remove constraint Topic: Plantae