Exceptionally large park. This is closest to the southern entrance. We had bison herds South of us and North. We never managed to make it East where the long trail is, which seems to be known for wildlife. We had easy access to the West exit and had a great dining experience as well as quick access to all the local monuments. The campground was very peaceful. The showers and bathrooms were very clean. There is a centrally located atrium for events that we didn't see used. We ended up next to a group of young college age people who were spread out and noisier than most, but that was just our luck. We had a break in the tree line to see stars from our tent. There is a gas station and store right at the campground. We didn't plan enough time to give the hiking trails a chance. This campground does have horse trails.