You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place east of Calypso Cascades, Thunder Lake Trail, Rocky Mountain National Park, 3½ miles west of Allenspark Remove constraint Place: east of Calypso Cascades, Thunder Lake Trail, Rocky Mountain National Park, 3½ miles west of Allenspark