The highway's eastern terminus, about  west of Bozeman, is a location known locally as "Four Corners." From Four Corners, US 191 runs east to Bozeman, and south to West Yellowstone; Highway 84 travels west to Norris; and Montana Highway 85 runs north to Belgrade.
The highway's eastern terminus is located near Bozeman, roughly west of the city, and it's known locally as "Four Corners." From Four Corners, US 191 heads east towards Bozeman and south towards West Yellowstone; Highway 84 travels west to Norris, while Montana Highway 85 runs north to Belgrade.