I'm not sure if the area we ride is called Whiterock or not (if it's not, then it's very close by)--I'll find out as soon as one of the other guys calls me back. We go southwest out of Fayetteville to Combs, then a few miles south on Millcreek Road to the trailhead. Lots of miles of trail: rocky, hilly, some water crossings, mostly relatively fast (if you're comfortable with the rocks), with some tight woods. We're all Enduro guys on KDX's and KTM's. I'll post re: Whiterock, but I'm not at my 'puter a lot, so it may be a bit before I get back to you.