Can't say much about dry camping, but we enjoyed River Bend quite a bit while we were there. Lot's of good road riding too. Good luck at Vineman.
I'll say this much - there must be a lot of places to camp in the forest because we saw people coming out of the woods all the time. Then again, the area may be pretty packed and the people coming out of the woods didn't look like they were getting in from a run, if you know what I mean.
Tim, Tara and Canyon - 'TnT' (& C now...)
2015 Thor Outlaw 37LS w/FJ Cruiser Toad
Columbia 400, 1967 Corvette, KTM 350 EXC-f, TTR 125 LE, XR50 for toys