Pioneer Historic Byway

Getting to the Byway: Idaho Falls, ID Take US-26 northeast to Alpine Junction, WY. Merge onto US-89 and go south into Star Valley, WY. Take WY-239 west to State Line Rd. Follow State Line Rd. north to ID-34 where the byway begins. Salt Lake City, UT Take I-15 north to Brigham City, UT. Get on US-91 and go north to Franklin, ID where the byway begins. Navigating the Byway: The primary 127-mile byway route is located on four separate highway segments: US 91 from Franklin to Preston, SH 34 from Preston to Soda Springs, US 30 at Soda Springs, returning to SH 34 from Soda Springs to Freedom, Idaho/Wyoming.