I think you're confusing Jefferson with Shenandoah. The Jefferson you'll either hit a tree or a berm, but not many concrete walls.
The Jefferson is a good place to learn car control/throttle control, think of it as a high speed autox. There are some good increasing/decreasing radius turns. It's small and gets boring after awhile though. Find a club that runs it both directions, going one direction each day. That really makes it unique as I can't think of any CW/CCW tracks in the north east. The Jefferson also has it's own skidpad, hopefully you get to spend a good amount of time on it.
My first track event (2006) was on the Jefferson...a group called Cone Killers. Learned so much that day.