Hawaii
Moderate
Puna Coast Lava Access Road
Where molten rock meets the Pacific Ocean
Trail Type: Backcountry
Hawaii
Moderate
Kaloko-Honokohau Backcountry Coastal Trail
Ancient coastal path through volcanic Hawaiian history
Hawaii
Moderate
Kaupo Road
Maui's forgotten coast through ranch and lava country.
North Dakota
Moderate
Burning Coal Vein Road
Underground coal fire burning since the 1950s
North Dakota
Moderate
Souris River Loop Trail
Prairie pothole wetland wilderness loop
North Dakota
Moderate
Slope County Badlands Backcountry Circuit
Hidden badlands beyond the tourist trail
North Dakota
Moderate
Bakken Oil Field Ghost Road Network
Industrial backcountry through boom-bust oil country
North Dakota
Moderate
Killdeer Mountain Battlefield Trail
Where Sully's cavalry met Lakota resistance
North Dakota
Moderate
Theodore Roosevelt National Park Backcountry Road
Roosevelt's badlands hunting ground
North Dakota
Moderate
Sully Creek State Park Backcountry Trail
Roosevelt's badlands hunting route