I have been there only once and it was 8 bucks to get in. I started at Thorton Gap though and went south. I have been thinking about going back up there and wish I knew this earlier , maybe I could have joined you, oh well.
Jim2003(?) rides there a bunch I believe, hope he chimes in here before you leave.

It looks likw=e you are going to get good weather too, enjoy your ride!