We headeded out of the West Yellowstone campground back into the park by its incredibly busy west entrance down to the south entrance and to Grand Teton National Park.
We did a driving tour of the park (not nearly as much driving as Yellowstone) and did a one-hour (really 1.5 hour) very informative boat ride on Jenny Lake.
We spent the night at the RV park at Flagg Ranch – 2 mi south of Yellowstone, 5 miles north of Geand Teton – but in some park or other.
On the Go with John and Jessie 
We stayed at Flagg Ranch with Deb about 10 years ago. Deb and I drove back into the park each day to do our site seeing. Sam joined us some of the time.