Montana
ModerateLonesome Highway — Elkhorn Mountains Crest to Marysville via Badger Pass and Scratchgravel Road
Ghost towns and ghost ridges above Helena.
Trail Type: Overland Route
USA
ModerateSawmill Road to Gros Ventre Slide — Kelly Warm Spring to Red Hills via Gros Ventre River Road
A landslide scar, red hills, and Teton solitude.
Idaho
DifficultLolo Motorway — Lewis and Clark Trail from Lolo Pass to Weippe via FR 500
Lewis and Clark's ridge road — still wild.
Montana
ModerateLonesome Highway — Garnet Ghost Town Road to Bearmouth via the Clark Fork River Bench
Montana's best ghost town, earned not given.
Colorado
ModerateOuray County Road 26 — Owl Creek Pass to Cimarron via the Uncompahgre Canyon Rim
Ute pass, volcanic ridge, zero crowds.
USA
DifficultLonesome Highway — Centennial Road to Tensleep Canyon via Nowater Creek and the Red Wall Bench
Red walls, dry creek beds, and Wyoming's big empty.
USA
ModerateLonesome Highway — Cisco Desert Road to Westwater Canyon Rim via Bitter Creek and I-70 Frontage
Ghost town to canyon rim across Utah's forgotten desert.
Idaho
ModerateLochsa River Road to Powell Ranger Station — Clearwater High Divide via FR 111
Lewis & Clark country on a road few bother to find.
USA
ModerateLonesome Highway — Escalante River Road to Hole-in-the-Rock via Fifty Mile Bench and Dance Hall Rock
Mormon pioneers. Wagons lowered by rope. You drive it.
Oregon
ModerateLakeview to Plush — Hart Mountain Antelope Refuge Desert Crossing via Warner Valley
Free hot springs, pronghorn, and zero crowds.