Grand Teton recommendation
We absolutely love the Tetons! The campground that we would recommend is Coulter Bay. Been there two years in a row! Nicely wooded, full hook-up, pull-through sites with good access to the entire park. Much, much nicer than the full hook-up alternatives in Yellowstone. You could also use this location if you wanted to do a couple of daytrips to Yellowstone, but it is a bit of a drive. You will find that the Tetons are much less crowded than Yellowstone, and in our opinion some of the best mountain vistas in the country! Enjoy the trip!!