Signs From Idaho

I-15 south approaching Exit 167. Use Exit 167 for Craters of the Moon National Monument.

I-15 South approaching Exit 167 - ID-22/Clark County A2/Dubois/Arco. The actual sign at the exit omits Arco from the destination.

I-15 south at Exit 172. Exit 172 was formerly signed as US Sheep Experiment Station

I-15 south approaching Exit 172. Exit 172 does not have a destination, but it formerly had a destination to the US Sheep Experiment Station.

I-15 south onramp at Exit 180 to Dubois and Idaho Falls.

I-15 north onramp at Exit 180 to Butte. Use I-15 south for Dubois and Idaho Falls.

Lost Gold Scenic Trails Loop in Spencer on Idamon Road. Use Idamon Road for Kilgore.

Lost Gold Scenic Trails and Fort Henry Historic Byway information and map.

Lost Trails Loop and Fort Henry Historic Byway information in Spencer.

I-15 north onramp at Exit 180 to Butte (Montana).