We live just north of Dallas and we have made the Beavers Bend State Park area
Beavers Bend Resort Park in southeast our second home. The first time we went we were amazed at the difference in the surroundings compared to just a few miles to the south. There are plenty of spots in the park, but also many cabins to park at as well. We had luck with
http://www.beaversbendlogcabins.com but I know there are many more in the area. It is truely one of the best areas to go RVing.