AMP: 544 Location: I-90 and Wyola Rd, Big Horn Cty Reassurance shield after the Wyola Rd interchange. AMP: 549 Location: I-90 and Aberdeen Rd, Big Horn Cty Reassurance shield a few miles later after a non-state highway connector to S-451. AMP: 554 Location: I-90 at the Wyoming Line, Big Horn Cty A few miles later, … Continue reading Interstate 90, S-457 to WY State Line