6600 acres of Ponderosa pine mountains, providing primitive and semi-primitive recreation. Non-motorized, but many miles of popular mountain biking and horseback riding in an undiscovered part of Nebraska. Roberts Tract Trailhead provides fully accessible rider ramp, nice vault toilet, water, and picnic tables. Fees only for camping at trailhead, from Memorial Day through Labor Day. Outside of summer season, pack-in, pack-out, and water not provided.