It's not terribly local, but durhamtown on I-20 east is a really nice place to wheel. It's a little bit of a haul from Kennesaw, but we used to go all the time from the Alpharetta/Cumming area and it was worth it. Decent little shop there as well. They specialize with dirt bikes, but when I destroyed my rear drive shaft on a rather intense hill climb, they helped me macgyver everything back together well enough to nurse my YJ back home. Didn't charge me a dime either.