Australia
ModerateGibb River Road — Home Valley to Wyndham via Cambridge Gulf and Keep River Rim
Croc country at the Kimberley's eastern edge.
Surface: Gravel
Namibia
ExpertNaukluft Mountains 4×4 Trail — Büllsport to Tsauchab River Gorge via the Naukluft Plateau High Spine
Dolomite cliff descents with zero room for error.
Northern Cape
ModerateNamaqualand Diamond Coast 4×4 Trail — Port Nolloth to McDougall’s Bay via the Diamond Coast Desert Fringe
Diamond coast, cold fog, and no second chances in soft sand.
China
DifficultSichuan–Tibet Highway — Batang to Markam via the Jinsha River Canyon and Tibetan Plateau Edge
Drop to the Yangtze, climb into Tibet.
Australia
DifficultGibb River Road — Bell Gorge to Beverley Springs via King Edward River and Barnett River Crossing
The Kimberley's loneliest corrugated stretch.
Nevada
ModerateLonesome Highway — Black Rock Desert Playa to Soldier Meadows via High Rock Canyon Rim
Playa to canyon. Flat to vertical. Nevada at its loneliest.
Botswana
ModerateNossob River Valley Track — Mata-Mata to Nossob Camp via the Kgalagadi Fossil Riverbed
Lions on a fossil river. No signal. No excuses.
Australia
DifficultGibb River Road — Silent Grove to Adcock Gorge via King Leopold Ranges and Lennard River
Limestone gorges and corrugations in the Kimberley.
Ethiopia
ExpertNairobi to Moyale — Northern Kenya Desert Highway via Marsabit and the Chalbi Desert
Kenya's hardest highway — not even close.
Sri Lanka
DifficultRooftop of Sri Lanka — Horton Plains to World’s End via the Central Highlands Plateau
4,000-foot drop at the edge of the world.