Ouachita National Recreation Trail is a 223-mile (359 km) long, continuous hiking trail through the Ouachita Mountains of Oklahoma and Arkansas. It is the longest backpacking trail in the Ouachita National Forest, spanning 192 miles across its length. Approximately 177 miles of the trail is in Arkansas and 46 miles of the trail is in Oklahoma. The trail is used by hikers, backpackers, hunters, and mountain bikers. It is a non-motorized single track trail open only to foot traffic and partially open to mountain bicycles. Segments opened to mountain bikes are from the western terminus of the Ouachita Trail at Talimena State Park to the Big Cedar trailhead on US Highway 259 at approximately Mile Marker (MM) 30.5 in Oklahoma, and from the Talimena Scenic Drive Trailhead at MM 54.1, east to Highway 7 at mile 160.4, north of Jessieville, Arkansas.

The Ouachita Mountains, simply referred to as the Ouachitas, are a mountain range in western Arkansas and southeastern Oklahoma. They are formed by a thick succession of highly deformed Paleozoic strata constituting the Ouachita Fold and Thrust Belt, one of the important orogenic belts of North America. The Ouachitas continue in the subsurface to the northeast, where they make a poorly understood connection with the Appalachians and to the southwest, where they join with the Marathon uplift area of West Texas. Together with the Ozark Plateaus, the Ouachitas form the U.S. Interior Highlands. The highest natural point is Mount Magazine at 2,753 feet (839 m).