Exit 174

I-90 east approaching Exit 174 - US-12 East/Garrison/Helena. US-12 east leaves I-90 eastbound here.

I-90 east at Exit 174 - US-12 East/Garrison/Helena. Continue east on I-90 to Butte. US-12 east leaves I-90 eastbound here.

US-12 approaching I-90.

US-12 west at I-90 east to Butte. US-12 continues west another mile to I-90 west.