Cottonwood is located inside the NP, so an extra admission fee of $30 is required. The sites are fairly wooded, but some are very small and oddly placed. The bathroom is a brand new building with flush toilets, it’s just too bad they did not add showers. Water spigots are plenty throughout the park, there is an RV fill-up, but there is no dump station. We didn’t see any wildlife in the campground, but it was plenty in the park. (Saw more in the 3 hour drive than our 3 days in Yellowstone!) We would hope to come back and spend one more day touring the north unit of the park. No AT&T service in the campground.