Some friends and I are getting together at Rocks & Valleys in Harrison on Jan. 15-17 to do some 4 wheeling. The park will only be open for us. Should pretty much be mostly Toys. Maybe 1 or 2 you have seen in a magazine or on the webz (I can't give out names). I haven't been too a lot of ORPs but this one is awesome! There is something there for everyone from stock to super-trick. If you happened to see the Dec. issue of 4 Wheel & Off-road, it was a featured stop on their Ultimate Adventure. The host, Ron Price, has dome a great job on the park and will help you out in any way he can.
Here is their website: http://rocksandvalleys.com/index.html
We will be staying at one of the local motels I believe but there is free camping for those that dare a few miles away (not sure how many).
I thought I modified a thread I had earlier about it but I must have deleted it instead. Oops.
Its $20 to get in the park and you will need a dune flag somewher on your vehicle. I will post a little more info about it after I receive it from my buddy putting it together.