Texas
ModerateBig Bend National Park Old Ore Road
Historic mercury mine route to the Rio Grande
Surface: Dirt
Texas
ModerateDavy Crockett National Forest Sandy Creek Loop
Piney woods logging roads and creek crossings
Texas
ModerateSam Houston National Forest Backcountry Loop
East Texas timber country forest road network
Texas
ModerateLonghorn Cavern State Park Backcountry Loop
Hill Country limestone maze through cedar breaks
Texas
EasyAngelina National Forest Backcountry Circuit
Piney Woods circuit through Bonnie and Clyde country
Colorado
EasyWeston Pass Road
Historic toll road over 11,900-foot mountain pass
Colorado
ModerateClear Creek Canyon Road
Old railroad grade to silver mining ruins
Colorado
ModerateGeorgia Pass Road
Historic stagecoach route over Continental Divide
Colorado
ModerateHoly Cross City Road
Ghost town ruins at 11,300 feet beneath Holy Cross
Texas
ModerateEast Texas Piney Woods Backcountry Loop
Deep woods solitude on forgotten logging roads.