Italy
ModerateColle del Sommeiller — Bardonecchia to the 2,993 m Alpine Summit
Almost 3,000 meters of Alpine gravel.
Feature: Historic
USA
DifficultFlint Trail — Hans Flat to Maze Overlook via the Orange Cliffs Switchbacks
A uranium-era ledge into the Maze.
France
ModerateCol de Parpaillon — Crévoux to Barcelonnette via the Parpaillon Tunnel
Alpine gravel with a military tunnel at the top.
USA
ModerateShafer Trail Road — Island in the Sky to Potash Road via the Shafer Switchbacks
A uranium-era cliff road dropped into canyon country.
New Zealand
ModerateNevis Road
NZ's highest public road, gold-rush ruins and fords.
Colorado
DifficultPearl Pass
Where mountain biking was born, now a 4x4 classic.
South Africa
ModerateGamkaskloof Road (Die Hel) — Swartberg Pass Summit to Gamkaskloof
Down the Ladder into the valley that time forgot
USA
EasyHell’s Backbone Road — Boulder to Escalante via Posey Lake and Hell’s Backbone Bridge
Cross the knife-edge bridge they built in 1933
Iceland
ModerateLaki Road F206 — Ring Road to Lakagígar via Fagrifoss and the Laki Craters
Drive into the fissure that nearly erased Iceland
Argentina
ModerateCuesta del Obispo — Escoipe to Cachi via Piedra del Molino and the Recta del Tin Tin
Cloud forest to cactus desert in one climb.