I saw a new show on Maryland PBS today called "Above Yellowstone". They do flyovers of the park with some fantastic photos of the landscape. They seem to jump around the park but I still think if you are going to Yellowstone you should try to watch the show.
In the shot of the north gate in Gardner you will see a small motorhome parked just inside the gate on the right. That could be the shot of my PC that is in "Adventure Anywhere". At the very lest that is where I was parked when I took the picture.