Arusha Region
DifficultNgorongoro Crater Rim to Lake Natron — Rift Valley Volcanic Floor via Ol Doinyo Lengai and Engaruka Ruins
Active volcano, soda lake, forgotten city.
Difficulty: Difficult
Level 3
Argentina
DifficultPaso Agua Negra — Vicuña to Rivadavia via the Dry Andes High Desert Crossing
4,765 metres of Andean silence between two countries.
Australia
DifficultGibb River Road — Mornington Wilderness Camp to Mitchell Falls via Kalumburu Road Junction and King Edward River
Four tiers of falls, zero forgiveness.
Argentina
DifficultPaso Vergara to Futaleufú — Northern Patagonian Frontier via the Palena River Valley and Carretera Austral Backdoor
Mud, fords, and raw Patagonia before the crowds find it.
Arizona
DifficultEl Camino del Diablo — Ajo to Lukeville via the Sonoran Desert Volcanic Corridor
The Devil's Highway — death, desert, and history.
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.
Iceland
DifficultLandmannalaugar to Þórsmörk — Laugavegur Highland Track via Hrafntinnusker and Emstrur (Full Classic Traverse)
Volcanoes, obsidian, and glacial fords — no bridges.
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.
Colorado
DifficultImogene Pass — Ouray to Telluride via the San Juan High Alpine Shelf Road
13,114 feet. No guardrails. No excuses.