AMP: 87 Location: Main St and 19th Ave, Bozeman Reassurance shield after the S-412 junction. AMP: 88 Location: Main St and 7th Ave, Bozeman A few blocks later, turn left for S-570/I-90 Business west towards I-90. Stay straight for 191 South/90 Business east towards Livingston.  N to MT-86, S to S-345  E to MT-86, W to I-90/S-570 … Continue reading U.S. Route 191, S-412 to I-90 Bus/S-570