http://www.rockrunrecreation.com/
It is a really a ATV & dirt bike park, but I have heard from many people that they let Jeeps in there. Just today I heard they have let clubs rent it out.
Of course this is just rumor, but I figured I would post it to see what you guys thought. It says they have 50 miles of trails... not sure if that is a lot or not.
If it seems like it maybe be something to try maybe Tico could use his charm to get us in??