Last Driven August 2009 Location: Greenwood St and N Rail St, Shoshone A block after 26 and 93 merge, they’ll come to a junction with Idaho 75, which heads to Sun Valley. Follow 26 East/93 North to Arco and Idaho Falls E to US-20, W to ID-46 N to US-20, S to ID-24 N to … Continue reading U.S. Route 26, US-93 to ID-75