Arizona
DifficultEl Camino del Diablo — Ajo to Lukeville via the Sonoran Desert Volcanic Corridor
The Devil's Highway — death, desert, and history.
Trail Type: Overland Route
Graubünden
ModeratePasso dello Spluga North — Splügen to Thusis via the Swiss Alpine High Road
Napoleon's cliff road through the Swiss Alps.
Texas
ModerateTrans-America Trail — Uvalde to Rocksprings via the Nueces River Canyon and Texas Hill Country Divide
Hill Country caliche and canyon walls.
India
ExpertZanskar Valley Road — Kargil to Padum via the Suru Valley and Penzi La Pass
Ladakh with the guardrails removed.
Canada
DifficultDempster Highway — Dawson City to Inuvik via the Richardson Mountains and Peel Plateau (Classic Full North Traverse)
740 km of Arctic gravel. Bring two spares.
Northern Cape
ExpertRichtersveld Transfrontier — Sendelingsdrift to Alexander Bay via the Orange River Desert Canyon Rim (Full Southern Traverse)
Africa's hardest desert meets the Orange River canyon.
Iceland
DifficultLandmannalaugar to Þórsmörk — Laugavegur Highland Track via Hrafntinnusker and Emstrur (Full Classic Traverse)
Volcanoes, obsidian, and glacial fords — no bridges.
Algeria
ExtremePiste de Tamanrasset à Djanet — Hoggar to Tassili via Hirafok and the In Amguel Plateau (Trans-Saharan South Segment)
Hoggar to Tassili. No services. No margin.
Australia
DifficultRica Roca Track — Parachilna to Blinman via the Elder Range and Heysen Range Spine (Flinders Ranges Classic)
Ancient quartzite, zero signal, real outback.
Mali
DifficultPiste du Bandiagara — Bankass to Sangha via the Dogon Escarpment and Falaise de Bandiagara
Cliff villages, 11th-century granaries, red dust.