One of the troup leaders attended the Jan. BTCEB mtg and mentioned they might open it up to general use during non-scout months. Since there are minors there that they're responsible for, they need to keep it private property when scouts are using the camps and trails.
Lots of scout masters and dads with kids in the camp come up and ride the trails, but I think you need to be in a troop at boyscout level.
All the trails are handmade btw, that just makes everything all the better.
I am not sure about the winter though, I do know they rent out cabins of some sort to the general public as but I believe it is going to open next winter for riding. Just remeber that now it is considered privet property. If you are really interested you can drop kevin an e-mail from the site.
So one of the loopholes is that anyone is allowed to rent out one of the cabins or a 3000sq ft lodge and as a result be allowed to ride the trails in the off-season. But currently only half of the trails have marked entrances.