I-15 South - Exit 194
I-15 south at Exit 194 - Custer Ave. This interchange was opened in 2012.
I-15 South - Helena Exits
Helena - Next 4 Exits on I-15 south.
I-15 North - Exit 194
I-15 north at Exit 194 - Custer Ave. Continue north on I-15/US-287 North for Great Falls.