AMP: 0 Location: 19th Ave and Springhill Rd Just after I-90, we’ll cross over the frontage road and approach Highway 411 AMP: 0 Location: 19th St and Springhill Rd, Bozeman Turn right for 411 north towards Springhill. 411 south is a thing too, and you can turn left for that. It terminates about a block south of … Continue reading Montana Secondary Highway 412, I-90 to S-411