Chihuahua
DifficultCopper Canyon Rim Trail
Cliff-hanging route through Mexico's grandest canyons
Difficulty: Difficult
Level 3
USA
DifficultRattlesnake Canyon Trail
Where flash floods carve trails and crowds fear to tread.
Oregon
DifficultTillamook State Forest Backcountry Network
Oregon's muddy maze where loggers fear to tread
Arizona
DifficultSchnebly Hill Road
Red rock beatdown on Arizona's gnarliest historic route.
Australia
DifficultFlinders Ranges Ridgetop Trail
Ancient peaks, gnarly rocks, zero compromise
Australia
DifficultGibb River Road
Six hundred clicks of pure Kimberley grit
Montana
DifficultYankee Jim Canyon
Death-defying ledges on a century-old mining road
California
DifficultFordyce Creek Trail
Sierra granite gauntlet with serious consequences.
Iceland
DifficultÖskjuleið (F88) to Drekagil
Where dragons carved their path through volcanic hell
Iceland
DifficultLakagígar Craters Road (F206)
Where fire reshaped the world