AMP: 450
Location: I-90 and 27th St, Billings
Reassurance shield after MT-3
AMP: 450
Location: I-90 and 27th St, Billings
1.75 miles to I-90 Business/US-87 and the town of Lockwood. 5.5 miles to I-94.
AMP: 451
Location: I-90 and US-87, Billings
1 mile to junction US 87
AMP: 452
Location: I-90 and US 87, Lockwood
Exit for 87 north and 90 business west. US 87 ceases to be a relevant route for a long while here. The highway will follow I-90 and I-25 all the way to Raton, New Mexico, leaving briefly for a couple miles on two separate occasions in Wyoming, but never getting more than a couple miles away from the freeway.