Argentina
DifficultRuta del Libertador — San Juan to Uspallata via Barreal and the Calingasta Valley
Pre-Andean canyon country. Rivers, red rock, zero traffic.
Trail Type: High Clearance
Australia
ModerateBirdsville Track — Marree to Birdsville via the Tirari and Strzelecki Desert Fringe
The original outback cattle road. Five hundred clicks of red nothing.
England
DifficultHardknott and Wrynose Passes — Eskdale to Little Langdale via the Lake District’s Hardest Road
England's steepest road — no room for mistakes.
Idaho
DifficultGrave Creek to Magruder Corridor — Selway-Bitterroot Wilderness Divide via Paradise Guard Station
100 miles of wilderness road. No way out but through.
China
ExpertSichuan–Tibet Highway — Markam to Zuogong via Dongda La High Pass and Lancang River Canyon
Sea-level canyon to 5,000m pass in one gut-punch climb.
Australia
DifficultGibb River Road — Barnett River Gorge to Pentecost River via Mount Barnett Station and Manning Gorge
Kimberley corrugations, crocs, and cold gorge water.
Namibia
DifficultTsaobis to Welwitschia Wash — Khomas Highland Desert Plateau via Farm Tracks and the Lower Swakop River Gorge
Ancient desert, zero guardrails, thousand-year plants.
Alberta
DifficultGibb River Road — Tunnel Creek to Windjana Gorge via Napier Range Limestone Corridor (Wet Season Approach)
The Rocky Mountain spine — no guardrails.
Gilgit-Baltistan
ExpertRooftop of the World — Deosai Plains High Crossing via Sheosar Lake and Bara Pani Ford
4,000m plateau. Bears. Zero signal. Pure.
Alaska
ModerateChilkoot Pass Road — Skagway to the Yukon Interior via the White Pass Summit Approach
Dead horses, gold fever, and the longest switchback in history.