USA
Difficult
Georgia Traverse
Vermont's gnarliest Green Mountain gauntlet
Feature: Scenic
California
Moderate
Backcountry Discovery Route – California (CABDR)
Border-to-border California backcountry odyssey
Montana
Expert
Continental Divide Trail – Montana Section
High-altitude wilderness spine of the Rockies
Michigan
Easy
Pictured Rocks Backcountry Route
Great Lakes wilderness through forgotten mining country
California
Difficult
Sierras to Desert Trail
Alpine peaks to desert floor through mining history
USA
Moderate
Hell’s Backbone Road
Historic bridge spanning Utah's wildest canyon country
Colorado
Difficult
Imogene Pass Road
Mining road to Colorado's sky islands
USA
Moderate
Moab Slickrock Bike Trail 4WD Loop
Sandstone grip where bikes meet Jeeps
USA
Easy
Chinook Pass Highway (SR 410)
Mountain highway when the snow gates open
Colombia
Expert
Nevado del Tolima Volcanic Circuit
Volcanic moonscape meets thermal hell