Here's some pictures from the time I went up there a few years ago.
They've got some really nice single track where everyone meets. I think I went up on Saturday and rode the loop 2-3 times. That was more than enough on the XRL. Then Sunday there was some dirt roads that eventually led to another single track loop you could ride as much as you wanted, lunch under a pavilion there at the single track and then ride back.
Your 250 will be perfect for it.
Tim, an inmate on here, is up there usually. Really nice guy who can probably show you around too. And dam, just realized I still have his roll chart!
Here's his page - http://www.advrider.com/forums/member.php?u=84095
Oh, and here's some video someone made a few years back - http://vimeo.com/25852428