`Stopped at Palo Duro Canyon (Hackberry campground) on our way back from Colorado and will definitely be back (just not in the summer). This is an easy weekend trip from Dallas and the park has incredible hiking trails. The campsites are well maintained and well-spaced. Couple things to be aware of: the dump station is a little sketchy and there are an absurd number of dumpsters throughout the campground. While I'm sure that the excess trash receptacles help keep the campground clean (there is certainly no excuse for littering), I think it contributed to a large fly population that plagued our stay. It was impossible to keep them out of the camper--they would sneak in anytime we opened the door. But I'll take flies over mosquitos any day. 

If you're looking to stay in the panhandle, check out Caprock Canyons State Park. It's not far at all from Palo Duro Canyon and we love the park. There are fewer visitors, the views are just as spectacular, and bison will visit your campsite!