AMP: 456 Location: I-94 and I-90, Yellowstone Cty Reassurance shield after the I-94 split AMP: 462 Location: I-90 and Pryor Creek Rd, Yellowstone Cty Reassurance shield after Pryor Creek Rd. AMP: 484 Location: I-90 and Frontage Rd, Crow Cty Reassurance as we enter Crow County and pass a short connector to the frontage road. AMP: … Continue reading U.S. Route 87, I-94 to I-90 Bus/MT-47