- Genesee-Juliaetta Road
- Greer Grade Road
- Elk River Road / Well Bench Road
- Idaho State Route 5
- Idaho State Route 8
- Idaho Route 11 / Greer Grade Road
- Idaho Route 13 ‘Harpster Grade’
- Idaho Route 14 to Elk City
- Idaho / Oregon Route 71
- Idaho Route 97
- Mount Idaho Grade Road
- Old Lewiston Grade ‘Spiral Highway’
- Old Whitebird Grade
- Old Winchester Grade
- Woodland Grade Road