Exit 278

I-15/US-89/MT-200 Shields on I-15 North

I-15/US-89/MT-200 Overhead on US-89 North at I-15 Junction

BL-15/US-89/MT-200/10th Ave. West Exit on I-15 North

I-15 North at Exit 278 - BL-15/US-89 South/MT-200 East/10th Ave. South. US-89 North/MT-200 West join I-15 northbound.

I-15 North/US-89 North/MT-200 West - Great Falls

BL-15 South/US-89/MT-3 North/MT-200 West at I-15 junction. Merge right for I-15/US-89 North/MT-200 West to Shelby. Use I-15 south for Helena. MT-3 northbound and BL-15 southbound end here.

MT-3 Onramp onto I-15 North approaching Exit 277 - International Airport. Use Exit 277 for Montana Air National Guard. This is the west end of MT-3.

I-15 north approaching Exit 278 - BL-15/US-89 South/MT-200 East/10th Ave. South. US-89 North/MT-200 West join I-15 northbound to Vaughn.