Oh, awesome! I've always wanted to go there. I had applied for a geology internship there during my undergraduate years, but unfortunately came in a close second for the position. That would have been a magnificent summer. :]
Its so close to me, yet its my first time there. I also plan to visit Cujo caverns which has a guided 2 hour tour. And a 3 1/2 tour is available for Hensley Settlement nearby. A preserved Appalachian. town.