Bhutan
DifficultBhutan Lateral Road — Thimphu to Trashigang via Thrumshingla Pass
Bhutan's backbone: cloud forest, passes, no tourists.
Difficulty: Difficult
Level 3
Australia
DifficultGibb River Road — Imintji to Silent Grove via the Kimberley Ranges Heart
Red dirt, big gorges, zero mercy.
North Carolina
DifficultTrans-America Trail — Tellico Plains to Robbinsville via the Cherohala Skyway Backdoor
Appalachian ridge country the pavement tourists never find.
Australia
DifficultGibb River Road — Beverley Springs to Mitchell Plateau via King Edward River and Kalumburu Road Junction
Mitchell Falls or bust — no rescue coming.
China
DifficultSichuan–Tibet Highway — Batang to Markam via the Jinsha River Canyon and Tibetan Plateau Edge
Drop to the Yangtze, climb into Tibet.
Australia
DifficultGibb River Road — Bell Gorge to Beverley Springs via King Edward River and Barnett River Crossing
The Kimberley's loneliest corrugated stretch.
Australia
DifficultGibb River Road — Silent Grove to Adcock Gorge via King Leopold Ranges and Lennard River
Limestone gorges and corrugations in the Kimberley.
Sri Lanka
DifficultRooftop of Sri Lanka — Horton Plains to World’s End via the Central Highlands Plateau
4,000-foot drop at the edge of the world.
Namibia
DifficultSossusvlei to Naukluft Mountain Plateau — Hardap Desert High Spine via Solitaire and Tsaris Pass
Dunes to gorge country in one savage Namibian day.
Australia
DifficultGibb River Road — Adcock Gorge to Bell Gorge via Barnett River and Beverley Springs Station
Kimberley gorges, corrugations, and one big river.