Montana
ModerateMojave Road — Needles to Barstow via Fort Piute, Government Holes, and Afton Canyon (West-to-East Historic Full Crossing)
Montana high country that the crowds haven't found yet.
Surface: Dirt
Australia
DifficultSiberia Track — Wentworth to Broken Hill via the Darling River Red Desert Corridor
Outback Australia at its most honest and merciless.
New Mexico
ModerateTrans-America Trail — Grants to Quemado via the Continental Divide Dirt Corridor
Pavement-free across the Continental Divide.
Georgia
ModerateKavkazion Military Highway — Tbilisi to Kazbegi via the Georgian Military Road and Jvari Pass
Silk Road, Soviet tarmac, Caucasus sky.
Arizona
ModerateCoronado Trail Scenic Byway — Springerville to Clifton via the White Mountains and Blue Range Primitive Area (US-191 Full Run)
89 miles of switchbacks. Zero shortcuts.
Colorado
DifficultAlpine Loop — Lake City to Ouray and Silverton via Engineer, Cinnamon, and Animas Forks
Three 13,000-ft passes. One legendary loop.
Bolivia
ExtremeCamino de la Muerte — La Cumbre to Coroico via the North Yungas Death Road
64km of cliff track with 600-metre drops and no guardrails.
Namibia
ExtremeVan Zyl’s Pass — Opuwo to Marienfluss Valley via the Kaokoland Wilderness Divide
One-way down. No room for mistakes.
Oregon
ModerateOregon BDR Northern Segment — Lakeview to Burns via the Warner Valley and Steens Mountain High Desert
Hart Mountain, Steens, and the Alvord at your feet.
KwaZulu-Natal
ExpertLesotho Sani Pass to Mokhotlong — Roof of Africa Eastern High Road via Sehonghong River Valley
Past the pub, into the real Lesotho.