Idaho
ModerateNez Perce–Clearwater Forest Road Network — Red River to Elk City via the Gospel Hump Wilderness Divide
Old mining country, hot springs, and real Idaho wilderness.
Trail Type: High Clearance
California
ModerateMojave Road — Afton Canyon to Piute Spring via Soda Lake and Government Holes (West-to-East Historic Crossing)
The Army's old desert highway, still running.
Alaska
ModerateNena Creek to Skagway — Klondike Highway Backcountry via White Pass Summit
Gold Rush ghosts and an alpine border at 3,300 ft.
Colorado
ModerateColorado BDR North Segment — Walden to Steamboat Springs via Zirkel Wilderness Edge and Hahns Peak
North Park wide-open on the BDR's quiet end.
California
ModerateMojave Road — Government Holes to Piute Spring via Lanfair Valley and Fort Piute
An 1867 Army fort and a living spring, earned in sand.
China
DifficultSichuan–Tibet Highway — Litang to Daocheng via the Tibetan Plateau High Spine (G318/G227)
The high road to the last Shangri-La.
New Mexico
ModerateTurquoise Trail — Tijeras to Taos via the Sandia Mountains and High Road
Ghost towns, pueblo missions, and high desert light.
California
ModerateMojave Road — Needles to Barstow via Piute Spring, Government Holes, and Afton Canyon
Army camels, lava fields, 140 miles of honest desert.
Alaska
DifficultDalton Highway — Fairbanks to Deadhorse via the Brooks Range, Atigun Pass, and Arctic Tundra (South to North Full Run)
Arctic Ocean or bust — 414 miles of no mercy.
Gilgit-Baltistan
ModerateKhunjerab Pass to Sost — Karakoram Highway Pakistan Summit Descent via Shimshal Valley Junction
The roof of the Karakoram — drive it or dream it.