Argentina
ExpertPaso de Agua Negra — Rodeo to Vicuña via the Andes High Desert Crossing
4,765 m of volcanic Andean desert and thin air.
Surface: Dirt
Australia
DifficultGibb River Road — Adcock Gorge to Barnett River Gorge via Kimberley Plateau Interior
Corrugations, gorges, and Kimberley grit.
Morocco
ModerateTizi n’Test Pass Road — Marrakech to Taroudant via the High Atlas Southern Spine
High Atlas death-drop road with an ancient mosque in the clouds.
Argentina
DifficultRuta del Libertador — San Juan to Uspallata via Barreal and the Calingasta Valley
Pre-Andean canyon country. Rivers, red rock, zero traffic.
Australia
ModerateBirdsville Track — Marree to Birdsville via the Tirari and Strzelecki Desert Fringe
The original outback cattle road. Five hundred clicks of red nothing.
Kenya
ExpertTurkana Jade Sea Road — Loiyangalani to North Horr via the Chalbi Desert Fringe
Jade lake to salt flat — East Africa at its rawest.
Australia
DifficultGibb River Road — Lennard River to Adcock Gorge via the Kimberley Ranges Spine
Bulldust, crossings, and gorge-country solitude.
Idaho
DifficultGrave Creek to Magruder Corridor — Selway-Bitterroot Wilderness Divide via Paradise Guard Station
100 miles of wilderness road. No way out but through.
China
ExpertSichuan–Tibet Highway — Markam to Zuogong via Dongda La High Pass and Lancang River Canyon
Sea-level canyon to 5,000m pass in one gut-punch climb.
Australia
ExtremeCanning Stock Route — Well 36 to Well 51 via the Great Sandy Desert Northern Core
The CSR's loneliest stretch — no help, no signal, no mercy.