Denton Greenbelt features 21 miles of hiking trails near Denton, TX.
There are 3 entrances to the Denton Greenbelt: Denton, from I-35 exit HWY 380 and head East through town for approx. 10 miles. Once you pass Loop 288 the access park will be on your left within 5 minutes. If you can see the lake on your right you have just passed the entrance. Sanger, from I-35 exit FM 455 and head East. After you pass the dam the Elm Fork Park entrance to the Greenbelt will be on your right very quickly. The 3rd entrance is right in the middle of Denton and Sanger so it would be better to start the ride from the aforementioned cities.
http://www.tripleblaze.com/trail.php?c=3&i=1035