The Harry S Moss Park mountain bike trail (5.46 miles) is located along the bank of the White Rock Creek and buffers Greenville Avenue, Royal Lane and Walnut Hill. This is a beginner to intermediate trail with nearly six miles of mostly bench-cut single track to ride. The trail at Harry S Moss Park has very similar terrain to both Rowlett Creek Preserve and Oak Cliff Nature Preserve, but with more “human elements” incorporated into the basic flow of the trail. Things like cement and brick to reinforce areas, wooden beams to build beams and several wooden bridges.