AMP: 2 Location: 19th Ave and Main St, Bozeman No reassurance shield at the beginning of 412 AMP: 1 Location: 19th Ave and Baxter Ln, Bozeman A few blocks later, we’ll get our first 412 shield. Stay straight for S-412 to I-90 AMP: 0 Location: 19th Ave and Valley Center Rd, Bozeman Turn left for S-235, which parallels … Continue reading Montana Secondary Highway 412, US-191 to S-235