South Dakota
Difficult
Centennial Trail – Black Hills Section
Cross the entire Black Hills backcountry
Feature: Remote
South Dakota
Expert
Bulldog Gulch Trail
Granite gauntlet that eats differentials
South Dakota
Difficult
White River Badlands Fossil Loop
Ancient sea beds and fossil hunting
South Dakota
Moderate
Badlands Sage Creek Wilderness Road
Into the heart of America's fossil treasure chest
South Dakota
Difficult
Missouri River Breaks Buffalo Gap Trail
Lewis and Clark's nightmare, modern 4x4ers' challenge
California
Moderate
Afton Canyon Road
Mojave's secret water canyon
California
Moderate
Johnson Valley to Lucerne Valley OHV Trail
28 miles of Mojave sand linking OHV legends
California
Moderate
Soggy Dry Lake Loop
High-speed playa meets technical rock crawling
California
Difficult
Sidewinder Trail
Technical granite crawling minus the tourist hordes
California
Moderate
Stoddard Wells Road
Historic freight road through Joshua tree country