Tajikistan
DifficultZulümart Pass to Murghab — Pamir Highway High Plateau via Karakul Lake (M41)
The Roof of the World — Karakul to Murghab above 4,000 m.
Feature: High Altitude
Morocco
ExpertToubkal Circuit High Atlas Piste — Imlil to Aroumd via Tizi n’Ouanoums and Tizi n’Tadat
North Africa's highest peak from a driver's seat.
Gilgit-Baltistan
ModerateKarakoram Highway — Gilgit to Sost via Hunza Valley and Passu Glacier
Hunza Valley to the roof — the KKH at its wildest.
Graubünden
DifficultPasso dello Spluga — Chiavenna to Splügen via the Italian-Swiss Alpine High Road
Napoleon moved an army here. Your rig can handle it.
Argentina
ExpertPaso San Francisco — Fiambalá to Paso San Francisco via the Puna de Atacama Volcanic Corridor
Volcanoes, altitude, and no way back easily.
Himachal Pradesh
DifficultManali–Leh Highway — Manali to Leh via Rohtang Pass, Baralacha La, and Tanglang La
Five passes. Four months. Zero margin for error.
Oregon
ModerateTrans-America Trail — Bly to Lakeview via the Oregon High Desert Volcanic Plateau
Oregon's emptiest county. Bring everything.
India
DifficultZoji La to Drass — Kashmir Gateway High Pass via the Srinagar–Leh Corridor
The locked door between Kashmir and Ladakh.
Chad
ExtremePiste de l’Ennedi — Fada to Archei Guelta via the Ennedi Massif Rock Art Circuit
Prehistoric art and desert crocs. No safety net.
New Mexico
ModerateTrans-America Trail — Grants to Pie Town via the Continental Divide Dirt Corridor
Continental Divide dirt and a slice of pie at the end.