Oklahoma
ModerateArbuckle Mountains Turner Falls Loop
Ancient limestone technical challenge in Oklahoma's oldest hills
Difficulty: Moderate
Level 2
Oklahoma
ModerateOsage Nation Sacred Springs Trail
Sacred springs and Osage heritage paths.
Texas
ModerateCross Timbers Mining District Heritage Trail
Iron ore heritage meets Cross Timbers challenge.
Texas
ModerateDavis Mountains Fort Davis to McDonald Observatory High Route
Sky island traverse to Texas' astronomical crown
Texas
ModerateEast Texas Pineywoods Sabine National Forest Logging Road Network
Lost logging roads through East Texas timber maze
Texas
ModeratePalo Duro Canyon Lighthouse Trail Technical Challenge
Red rock technical through America's second canyon
Oklahoma
ModerateSeminole Nation Gaming District Sand Hills Explorer
Deep sand and oil boom ruins in Seminole County
Oklahoma
ModerateOsage Hills State Park Buffalo Creek Backcountry Circuit
Prairie bottomland and creek crossings in Osage country
Oklahoma
ModerateCherokee Nation Indian Territory Historic Road
Cherokee Nation roads through Cookson Hills history
Oklahoma
ModerateSequoyah National Wildlife Refuge Red Earth Trail
Red clay and river history in Cherokee country