You have to be pretty careful where you wheel. Especially around urban areas. A friend took me to this area of trails in Kansas City, Mo. It was all wooded, with lots of mud and some pretty dificult obstacles. We ran across lots of people on the trails. And then the cops closed in. We had choppers buzzing us with cops at the exits. We found an exit they didn't have covered and got out of there. I haven't been back since, but found out from one of the local Jeep club that the owner used to let people wheel, but got tired of the trash and noise and closed it. He puts up no trespassing signs, but people just tear them down. My friend was not aware it had been closed.