The Jeep Jams are actually sponsored by Jeep itself
So yes, only Jeeps.
We went after Scott got back from Africa, because as a feel good movement in supporting the troops, Jeep gave us four free tickets (about $800 worth for 2 adults and 2 kids) to go to any Jamboree in the U.S. that we wanted to...unfortunately Scott didn't get back from Africa until Sept, so we were short on options....
But Catskills kicked ass.
We camped on site, stayed the whole weekend, and went on two different trails, one was Hummel Hollow (5-6) and the other was White Lake Brook (6-8) I think? Some of it was pretty hairy and actually was a higher rating on our runs because of how bad the weather had been, and I was praying to the gods on White Lake Brook....it had been raining for 2 weeks before the run, and man was everything slick as snot and all sorts of jacked up. Didn't break anything, but had to use my winch for the first time on those trails LOL!
I think I made it into some of the Jeep Jam's website 2006 pictures? I will have to look...but it was crazy fun....