Oregon
ModerateBroken Top to Green Lakes — Cascade Volcanic High Country Road via Todd Lake
Pumice, volcanoes, and Oregon sky.
Trail Type: High Clearance
Idaho
DifficultLolo Motorway — Lewis and Clark’s War Road Across the Bitterroots
100 miles on the ridge Lewis and Clark barely survived.
Arizona
DifficultSawmill Canyon to Mount Lemmon — Santa Catalina Mountains Back Road
Desert floor to pine summit the hard way.
Colorado
DifficultCinnamon Pass Road — Lake City to Silverton via the Alpine Loop
12,620 feet of raw San Juan shelf road.
Colorado
ModerateBowen Gulch to Grand Ditch Road — Never Summer Mountains Wilderness Edge Traverse
Hand-dug canal road above 10,000 feet. Moose country.
California
ModerateLonesome Dove Road to Lost Horse Mine — Joshua Tree Desert Backcountry Loop
Gold mining desert — no crowds, no mercy.
Idaho
ModeratePaved Coffer to Hells Half Acre — Caribou-Targhee Volcanic Plateau Road
Apollo astronauts trained here. You can drive it.
USA
ModerateNotom-Bullfrog Road — Capitol Reef to Lake Powell via the Waterpocket Fold
The Waterpocket Fold's lonesome desert spine road.
Montana
ModerateRimrock Road — Breaks of the Missouri Backcountry via Blaine County
Lewis and Clark's river, from the top down.
USA
DifficultThorofare Road — Yellowstone’s Most Remote Backcountry Drive via Bridger-Teton
Edge of the lower 48's last true wilderness.