Did you get to do any of the ghost tours? That whole area is supposed to be massively haunted. In fact, all the locals will tell you that if you watch the movie "Gettysburg" (excellent movie, BTW!!!), during the scene of Picket's Charge, the Confederate troops actually make it to the stone wall and engage in a little bit of hand-to-hand with Union troops, and are driven back. During the filming, there were a certain number of extras who were told to drop somewhere in the field. They did. A handful make it to the wall, fight, and retreat. During the editing of the movie, a massive wave of Confederates reach the wall and start fighting! But they weren't there in reality. The ghosts of those who died in the Charge had one last opportunity to make it to the wall, and they did.
Or so the story goes.