You searched for: Place Au Sable Twp. On W. side of US-23 1/4 mi. N. of the Au Sable River bridge on S. side of town of Oscoda. Remove constraint Place: Au Sable Twp. On W. side of US-23 1/4 mi. N. of the Au Sable River bridge on S. side of town of Oscoda. Topic Poales Remove constraint Topic: Poales