In early 2016, the Native American Cultural Trail was created along M-185. The trail consists of a series of six information panels with bicycle parking areas. The panels were created in a collaboration between the Little Traverse Bay Bands of Odawa Indians and the MISPC along with funding by Mackinac Associates, a friends group that works with the state park. A portion of M-185 was resurfaced starting in September 2016. MDOT estimated the cost to be $900,000 (equivalent to $ in ).