You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place E shore of Sugarloaf Lake, at end of Osterhout Rd., ca. 4 mi. SW of Port- age. Gourdneck State Game Area. Remove constraint Place: E shore of Sugarloaf Lake, at end of Osterhout Rd., ca. 4 mi. SW of Port- age. Gourdneck State Game Area.