DZuster. I know where you're going this summer. LOL.

Depending on where they set up the track will vary. I remember china rock concrete up there but also black tarmac at other points. I would pre-prep the tires with VHT the night before and if you are allowed, during the staging area sit ins as well, that way you are on Trident gum mode as much as possible.
I'll help you out if you need the extra hands.
Good luck.