AMP: 306 Location: I-90 and 7th Ave, Bozeman Reassurance shield after the business loop splits. AMP: 308 Location: I-90 and Main St, Bozeman On the east side of Bozeman, we’ll approach Main St, which carries 191 south and I-90 Business. AMP: 309 Location: I-90 and Main St, Bozeman Exit for Main St. The business loop … Continue reading Interstate 90, I-90 Bus/S-570 to I-90 Bus/US-191