AMP: 337 Location: I-90 and I-90 Business, Park Cty Reassurance shield after the I-90 Business loop rejoins AMP: 338 Location: I-90 and I-90 Business, Park Cty 2 miles until US 89 splits AMP: 339 Location: I-90 and US 89, Park Cty 1 mile to US 89 north AMP: 340 Location: I-90 and US 89, Park Cty Exit for US … Continue reading U.S. Route 191, I-90 Bus to US-89