You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Ledges of the railroad cuts along the Mississippi River, above Dakota Remove constraint Place: Ledges of the railroad cuts along the Mississippi River, above Dakota Place Minnesota Remove constraint Place: Minnesota Place North America Remove constraint Place: North America Place USA Remove constraint Place: USA Topic Bryales Remove constraint Topic: Bryales Topic Bryophyta Remove constraint Topic: Bryophyta