Texas
ModerateTrans-America Trail — Uvalde to Rocksprings via the Nueces River Canyon and Edwards Plateau Divide (West Texas Classic Segment)
Limestone canyons and cattle country, no shortcuts.
Feature: Water Crossings
Namibia
ExpertNaukluft Mountains 4×4 Trail — Tsauchab River to Büllsport via Zebra River Canyon and Naukluft Plateau High Spine
Limestone canyons and shale descents in the Namibian heartland.
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.
Texas
ModerateTrans-America Trail — Uvalde to Rocksprings via the Nueces River Canyon and Texas Hill Country Divide
Hill Country caliche and canyon walls.
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.
Australia
ModerateTharwa to Boboyan — Namadgi National Park High Country Track via Corin Dam and Boboyan Road (ACT–NSW Alpine Divide Run)
Alpine wilderness, an hour from the capital.
Agadez Region
ExpertPiste de l’Aïr — Agadez to Iférouane via Timia Oasis and the Central Aïr Massif Volcanic Core
Tuareg country, volcanic gorges, hidden oasis.