You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Grant Twp., Nordhouse Dunes. Near end of powerline. Remove constraint Place: Grant Twp., Nordhouse Dunes. Near end of powerline. Place Mason Remove constraint Place: Mason Place Michigan Remove constraint Place: Michigan Topic Magnoliopsida Remove constraint Topic: Magnoliopsida Topic Populus Remove constraint Topic: Populus