QUOTE(Jerry S. @ May 10 2011, 11:27 PM)
There have been quite a few threads in this forum concerning Yellowstone. You may want to look at some of these threads by using the "Search" option on this site. Just use the "key word" Yellowstone and it will show you topics containing the word "Yellowstone". You may want to concentrate on topic titles that sound specifically about Yellowstone.
We were in Yellowstone last June and entered up through Idaho entering the West side passing through the Park and exiting the East side. We camped at a NFS campground 12 miles out the East entrance called Rex Hale Campground, w/e with pit toilet. No dump. Really a neat place in a scenic valley near a river. They did take the Senior Access Pass which left me paying something like $10 per night or something like that, don't remember exactly, but the price was right. There are several camping areas within 10-20 miles of the East Entrance similar to this one. Weather was unpredictable, some snow showers and windy most of the time. No problems pulling the camper through the Park.