You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Hillman Twp. 1 mi. N. of Co. Rd. 487 at N. end of Pine Oaks Rd., 3 mi. W. of Hillman. Remove constraint Place: Hillman Twp. 1 mi. N. of Co. Rd. 487 at N. end of Pine Oaks Rd., 3 mi. W. of Hillman.