Last Driven August 2020 (Historic Photo: August 2013) AMP: 337 Location: I-90 and I-90 Business, Park Cty Reassurance shield after the business loop split. AMP: 335 Location: I-90 and US 89, Park Cty In two miles, US 89 will split to head south. AMP: 334 Location: I-90 and US 89, Livingston In 1 mile, US … Continue reading U.S. Route 89, I-90 Bus to I-90/US-191