You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place On S. side of M-72 at Howes Lake Rd. ca. 4 mi. N.W. of town of Grayling. Frederick Twp. Remove constraint Place: On S. side of M-72 at Howes Lake Rd. ca. 4 mi. N.W. of town of Grayling. Frederick Twp.