The Ray Roberts Greenbelt is a hiking, biking, and horse trail that is part of the great Ray Roberts State Park system. The hiking/biking trail is mostly separate from the horse trail, though the two trails do intersect and share short segments of trail. When on the trail, bikers must yield to hikers, and both bikers and hikers must yield to horses.
You will either need a Texas State Parks annual pass or pay $7 per person to park and use the trail. The $7 fee is paid on the honor system. The park rangers do check periodically.
Currently, the southern trailhead at Highway 380 (University Dr.)—which is considered the main trailhead—is closed. The trailhead at FM 428 between Denton and Aubrey is open, but the southern section of trail from FM 428 south to Highway 380 is closed due to flood damage.
This is a great trail to introduce someone new to off-road trails who may not be ready for any elevation, singletrack, or anything even slightly technical. It’s also a great place to go put some easy spinning in when you want to ride long and straight but don’t want to fight traffic on the open road.
The northern section of the trail from FM 428 to FM 455 is open. It is approximately 4.5 miles long, and consists of mostly flat, crushed limestone doubletrack.
The southern section of trail from FM 428 to Highway 380 is currently closed. It is approximately 6.5 miles long, and consists of mostly flat, crushed limestone and soft-surface trail.
You can actually access the northern section of trail from either FM 428 between Denton and Aubrey, or along FM 455 between Sanger and Pilot Point. The FM 455 trail access point is very near to the entrance of the Isle Du Bois Unit of Ray Roberts State Park.
Check out the official Texas Parks & Wildlife map found here: https://tpwd.texas.gov/publications/pwdpubs/media/park_maps/pwd_mp_p4503_176a.pdf