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 on N. side of Down River Rd. ca. 12 mi. N.E. of Grayling. Grayling Twp. T27N, R2W, Sec. 26 NE1/4 Remove constraint Place: on N. side of Down River Rd. ca. 12 mi. N.E. of Grayling. Grayling Twp. T27N, R2W, Sec. 26 NE1/4