 South of town, the highway crosses the Boardman River again, and M-72 turns east again headed toward the city of Grayling.M-66 follows M-72 to cross a set of railroad tracks that belong to the Great Lakes Central Railroad before leaving to follow its path to Lake City.M-72 crosses the Manistee River at the Kalkaska–Crawford county line and passes the northern shore of Lake Margrethe west of town in the Camp Grayling military reservation.