Agree with other posters. Yellowstone is huge and if you stay outside the park most of your day will be spent going to and from camp. Please consider staying at Fishing Bridge if you need hookups. The other CGs in the park are good also if you don't need hookups. There is so much to see in this wonderful park. You will see how BIG it is when you get there so take the word of many of us that have been there and stay IN the park. I could go there 2-3 times a year and never get tired of it. Enjoy!