You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Canada Remove constraint Place: Canada Place E. side of N. end of Onion L. 2 km. W. of Spruce R. Rd., 25 km. NE. of Thunder Bay City Remove constraint Place: E. side of N. end of Onion L. 2 km. W. of Spruce R. Rd., 25 km. NE. of Thunder Bay City Topic Muhlenbergia Remove constraint Topic: Muhlenbergia