M-211 is a state trunkline highway in the Lower Peninsula (LP) of Michigan that connects the community of Onaway with Onaway State Park. The highway runs through farmland and forests along the 5.174-mile (8.327 km) route to the park. The trunkline was originally designated M-95 from 1919 until 1934. In that year, the designation was moved to a different highway in the Upper Peninsula (UP), and the state park connector was given the current number. The highway was last changed by 1960 when paving was completed.