You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Sturgeon River State Forest west side of Floodwood-Silver Lake Road, 2.8 mi. SE of Hwy. M-59. Remove constraint Place: Sturgeon River State Forest west side of Floodwood-Silver Lake Road, 2.8 mi. SE of Hwy. M-59.