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I-15 South/I-90 East - Exit 121
I-15 South/I-90 East - Exit 121

I-15 South/I-90 East approaching Exit 121 - I-15 South/Dillon/Idaho Falls. Continue west on I-90 for Missoula.

Taken 05-10-2015

Nearby Signs
Overhead Freeway Junction Intersection Big Green Sign Interchange Diagram
I-15 I-90 Butte Silver Bow County Montana United States

Next Sign

I-90 I-15 Exit 121
I-90 I-15 I-15/I-90/I-115 Junction