Billy Creek Campground Trail offers a memorable hiking experience in Ouachita National Forest, OK. Covering 5.0 miles with 600 feet of elevation change, this moderate trail showcases Oklahoma's varied landscapes. Trail specs: 5.0 miles, 600ft elevation gain, Moderate difficulty. Type: Loop. Surface: Dirt. Time: 2.5 hours. Fee: Free. Dogs: Yes, on leash. Permit: No. Wildlife sightings include deer, raccoons, wild turkeys. Oklahoma's diverse ecosystems support a surprising range of species. Best times: Fall through spring; clear mountain streams. Gear up with sturdy footwear, plenty of water, and sun protection. Oklahoma weather can shift quickly—check forecasts before heading out. Follow Leave No Trace principles: carry out all trash, stay on marked trails, and respect wildlife and other visitors.