 Exiting Bobcaygeon , the former highway serves cottages along the northern shore of Pigeon Lake and Little Bald Lake . After passing Nogies Creek , the highway descends a hill and encounters the Canadian Shield for the first time . The road runs along the border of the Precambrian shield and the Ordovician limestone plateau en route to Burleigh Falls . The shield lies to the north and is overlain by the plateau to the south . The highway turns south at Flynns Corner , intersecting former Highway 507 . It enters the town of Buckhorn from the north , then drivers must turn to remain on the route , which exits the town to the east . Between Buckhorn and Burleigh Falls , the highway serves the cottages that line the northern shore of Lower Buckhorn Lake . 
