Arizona
ExpertHarquahala Mountain Road
Punishing climb to Arizona's most remote lookout tower.
Surface: Rock
Arizona
DifficultBackway to Crown King
Arizona's gnarliest mountain road to ghost town glory.
Texas
DifficultPalo Duro Canyon Buffalo Wallow Trail
Technical limestone drops in America's second canyon
Texas
ModerateBig Bend National Park River Road East
Desert borderland track to thermal springs
Texas
ExpertHidden Falls Adventure Park Rock Crawl Circuit
Hill country's gnarliest limestone gauntlet
Texas
DifficultHueco Tanks Historic Ranch Road
Ancient tanks, Apache art, and axle-breaking rocks.
Texas
DifficultBig Bend Ranch State Park Solitario Road
Ancient volcanic dome crossing in the Chihuahuan Desert
Texas
DifficultDevil’s River State Natural Area Backcountry Loop
Technical limestone crawl to prehistoric springs
Texas
DifficultLost Maples State Natural Area Backcountry Roads
Technical Hill Country limestone maze
Texas
ModerateFranklin Mountains Wilderness Loop
Urban wilderness desert loop with three-state views