You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Jackpine-aspen woods along Crow Lake Trail c. 2.5 mi from Big Knob Campground Remove constraint Place: Jackpine-aspen woods along Crow Lake Trail c. 2.5 mi from Big Knob Campground Place Michigan Remove constraint Place: Michigan Place North America Remove constraint Place: North America Topic Lichens Remove constraint Topic: Lichens Topic Ramalina Remove constraint Topic: Ramalina