Signs From Idaho

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).

I-15 South Exit 180 offramp. Turn left for Spencer and Kilgore.

I-15 south at Exit 180 - Spencer

I-15 South Exit 184 - Stoddard Creek Area

I-15 south approaching Exit 184 - Stoddard Creek Area

Entering Targhee National Forest on I-15 south.