 From Four Corners, U.S. Route 191 (US 191) runs east to Bozeman, and south to West Yellowstone; MT 84 travels west to Norris; and MT 85 runs north to Belgrade.The designated MT 85 terminates near the southern end of Belgrade, at an interchange with Interstate 90 (I-90).Highway 85 begins at an intersection with US 191 and Highway 84 in the census-designated place of Four Corners.