Colorado
DifficultOphir Pass Road — Silverton to Telluride via the San Juan High Alpine Crossing
12,800 feet. Shelf road. No guardrails.
Surface: Rock
Kidal Region
ExtremePiste de l’Adrar des Ifoghas — Kidal to Tessalit via the Malian Saharan Massif
Tuareg caravan country. No roads. No margin.
Algeria
ExpertPiste de l’Assekrem — Tamanrasset to Assekrem Plateau via the Atakor Hoggar Volcanic Core
Volcanic roof of the Sahara. No shortcuts.
Namibia
DifficultNaukluft Mountains 4×4 Trail — Büllsport to Tsauchab River Canyon via Naukluft Plateau Desert Spine
Limestone ledges, dry gorges, and the Namib edge.
Kunene Region
ExpertHuab River Conservancy Track — Palmwag to Purros via the Skeleton Coast Hinterland
Desert elephants, dry rivers, zero crowds.
Ethiopia
DifficultTrans-African Highway — Nairobi to Addis Ababa via the Moyale Border and Northern Kenya Desert Corridor
Northern Kenya's desert gauntlet to Ethiopia.
Australia
DifficultBurn Road to Port Douglas — Daintree Cape Tribulation Backcountry Track via Emmagen Creek
Rainforest, crocs, and tidal creek roulette.
California
ModerateMojave Road — Barstow to Needles via Government Holes and Piute Gorge (Full Historic Crossing)
138 miles of Old West history across the Mojave.
Ancash
ExpertHuayhuash Circuit Road — Llamac to Cuartelwain via the Cordillera Huayhuash High Passes
6,000m glaciers. Zero guardrails. Real Peru.
Gorno-Badakhshan
ExpertPamir Highway — Murghab to Langar via the Wakhan Corridor Junction (M41)
Second-highest highway. Zero margin for error.