California
Difficult
Berdoo Canyon Road
Joshua Tree's technical backdoor challenge
Surface: Rock
USA
Expert
Cataract Canyon Trail
Where slickrock meets whitewater legend
Arizona
Expert
Bulldog Canyon
Where rigs go to die.
Argentina
Expert
Paso de San Francisco
World's highest border crossing at 15,577 feet
Baja California
Difficult
Guadalupe Canyon Hot Springs Trail
Technical desert crawl to hidden hot springs
Baja California
Difficult
Laguna Hanson Forest Loop
Pine forest refuge in Baja's high country.
Estado de Mexico
Expert
Volcano Route – Nevado de Toluca
Drive to 15,000 feet in an extinct volcano crater
Baja California
Difficult
Devil’s Backbone – Sierra de San Pedro Mártir
Knife-edge granite ridges to Mexico's highest peak
Mexico
Expert
Sierra Madre Oriental Backbone Trail
High-altitude spine through Mexico's eastern peaks
USA
Difficult
Rattlesnake Canyon Trail
Where flash floods carve trails and crowds fear to tread.