I just realized that I got my 476/76 toll roads confused. Was talking with my father (who drives tractor trailer up in that area on a regular basis) last night and he agrees with me that you'd be better off simply coming all the way down I-81 to Carlisle, instead of taking the long way around by going down the turnpike. Take exit 52, then take Rte. 11 south from there for a couple miles until you reach Carlisle proper, (you'll actually pass under I-76) there'll be an Autozone on your left, and a Hess station on your right. Make a right at the light just past the Hess station, and in two blocks, you'll see the fairgrounds. There are some nasty hills on 81 south of scranton but if you take it easy with the car you shouldn't have any problems. That, and it's preferable to going around two sides of a triangle. :)

-Nick