I ran all over Walker last weekend it was fun as hell, still some mud but mostly dry. There was alittle trash here and there, I picked up most that I saw. Didnt see any other rigs up there.
In a group of people and full bodied rig's, you can spend the better part of a day up there. Just take somebody with that know's their way around. We've gotten through there in 2 buggies in about 2 1/2 or 3 hours.