Idaho
DifficultLolo Motorway — Nez Perce Trail from Powell to Weippe via Lolo Pass and FR 500
Lewis and Clark's worst nightmare. Now yours.
Difficulty: Difficult
Level 3
Northern Cape
DifficultRichtersveld Akkedisberge Desert Pass — Port Nolloth to Eksteenfontein via the Knersvlakte Divide
Lizard Mountains and the edge of nowhere.
Colorado
DifficultEngineer Pass Road — Lake City to Ouray via the San Juan Alpine Backbone
13,218 feet of raw San Juan exposure.
Australia
DifficultGibb River Road — Derby to Kununurra via the Kimberley Gorge Country (Classic Full Traverse)
The Kimberley's red-dirt backbone.
Colorado
DifficultCinnamon Pass Road — Lake City to Silverton via the San Juan Alpine Crest
12,640 feet of silver-rush history and shelf-road grit.
Australia
DifficultGibb River Road — Galvans Gorge to Bell Gorge via the Kimberley Plateau Heart
Corrugations, gorges, and zero margin for error.
Argentina
DifficultPaso Pehuenche Cross — Talca to Paso Pehuenche via Laguna del Maule and the Andean Volcanic Divide
Chile's forgotten Andean pass — high, cold, and empty.
Arusha Region
DifficultNgorongoro Highlands to Olduvai Gorge — Crater Rim to Cradle of Mankind via Serengeti Shortcut
From the crater rim to the cradle of mankind.
Aysén Region
DifficultLagunas Altas Route — Paso Vergara to Lago General Carrera via the Aysén Highland Spine
Patagonia's plateau before the crowds found it.
Canada
DifficultContwoyto Winter Road — Tibbit Lake to Contwoyto Lake via the Arctic Ice Road
Six hundred kilometres of frozen lakes. Nothing else.