Yeah, I just found out about Tolar...down by Stephenville.
A few others to mention are:
Redneck Paradise..,North of the metroplex
Brushy Creek off-road park..south of the metroplex.
And if you're way the heck out East of Dallas Gilmer, Tx seems like the place to go.
(Didn't mean to hijack your thread, but thought u might like to know)