Shemrica,
Just spent a the last few weeks travel NW to East through Texas. State Park system in Texas it terrific and I did purchase the Annual Pass at $70. You have to decided if its right for yourself... I used it not only for the camping discounts but no charge day passes for hiking. Capitol Rock great hiking and buffalo, Copper Breaks good hiking trails west of Dallas but both many not qualify for your distance to civilization. Ray Roberts north of Denton water front sites and Stephen F Austin Park west of Houston nature trails and new bathroom / shower facilities both close to civilization. I am take note of fore mentioned park for my return trip.
Harvest Host also has some excellent options for over nights stops... stayed at an Alpaca Farm, Wine/Honey Farm, couple of breweries and museums... Tonight Lone Star Flight Museum for second stop with Tomorrow a Day at Houston Space Center.
Availability gets tough on weekends at both Private and Public locations if last minute but there are lots of Cracker Barrel’s which make a better choice than Walmart for an over night.
I have enjoyed Texas it is an awesome and diverse state.
Enjoy!
