List of Texas state parks within 2 hour drive of Dallas. Many offer tent and RV camping.
Dinosaur Valley State Park
Cedar Hill State Park
Lake Tawakoni State Park
Possum Kingdom State Park
Ray Roberts Lake State Park
Cleburne State Park
Lake Mineral Wells State Park
Lake Texoma State Park
Tyler State Park
Mother Neff State Park
These parks have hiking and biking trails, lake for fishing and kayaking, tent and RV camping.