Idaho - Montana Stateline

Welcome to Idaho on I-15 south at the Idaho-Montana stateline on Monida Pass.

Welcome to Idaho on I-15 south at the Idaho-Montana stateline on Monida Pass.

First distance marker in Idaho along I-15 south. Distance to Spencer, Dubois, and Idaho Falls.

I-15 south Entering Clark Count and Leaving Montana. Taken on Monida Pass on the Continental Divide between Idaho and Montana.

I-15 north approaching Montana Exit 0 - Monida. The signage is consistent with Idaho Transportation Department signs. The sign says next exit 16 miles, but the next exit is actually Exit 9, at Snowline. The next services are 16 miles in Lima.

I-15 south Entering Clark Count and Leaving Montana. Taken on Monida Pass on the Continental Divide between Idaho and Montana.

Welcome to Montana on I-15 North at the Idaho-Montana state line on Monida Pass. Monida Pass is the Continental Divide.

Speed Limit 80 MPH on I-15 south, just south of the Idaho-Montana border. The speed limit along I-15 is 80 MPH to Idaho Falls.