Signs Tagged With Interchange

I-15 Exit 0 onramp to Butte, and Idaho Falls.

I-15 North at Exit 0 - Monida. Monida is the first exit on I-15 north in 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 north at Exit 190 - Humphrey. This is the last exit in Idaho on I-15 north.

I-15 north approaching Exit 190 - Humphrey.

I-15 north Exit 184 - Stoddard Creek Area

I-15 north approaching Exit 184 - Stoddard Creek Area

I-15 north at Exit 180 - Spencer. The Nez Perce Trail leaves I-15 here.

I-15 North Exit 180 - Spencer. Spencer is the last town on I-15 north in Idaho. Spencer lies at the base of Monida Pass. the Nez Perce Trail exits I-15 here as well.

I-15 North at Exit 172. Exit 172 has no destinations, but formerly listed the US Sheep Experiment Station.