From Wyoming to Nevada:
1. Take U.S. Route 30 west to Interstate 15.
2. Turn north on Interstate 15.
3. Take Interstate 15 north to Interstate 86.
4. Turn west onto Interstate 86 at Pocatello.
5. Take Interstate 86 west to Interstate 84.
6. Turn south onto Interstate 84.
7. Follow I-84 south to State Route 77.
8. turn west on SR 77 to the City of Rocks Backcountry Byway.
9. Follow the COR Backcountry Byway to State Road 27.
10. Turn north on SR 27 to U.S. Route 30.
11. Follow U.S 30 west to U.S. Route 93.
12. Turn south on U.S 93 to the Nevada border.
From Wyoming to Utah:
1. Take U.S. Route 30 west to Interstate 15.
2. Turn north on Interstate 15.
3. Take Interstate 15 north to Interstate 86.
4. Turn west onto Interstate 86 at Pocatello.
5. Take Interstate 86 west to Interstate 84.
6. Turn south onto I-84.
7. Follow I-84 south to Interstate 15 and Salt Lake City.
Total original route miles in Idaho (including alternate routes): 457
