AMP: 446 Location: I-90 and Billings Blvd, Billings Just after the business loop, the control city switches to Sheridan and Billings Blvd prepares to split. AMP: 447 Location: I-90 and Billings Blvd, Billings Exit for South Billings Blvd. Billings Blvd is also S-416, which connects to S-418 which heads to Pryor.  E to MT-3, W to I-90 … Continue reading U.S. Route 212, I-90 Bus to S-416