We stayed 4 nights at Yellowstone Holiday RV Park and Marina. This park has a boat launch, small marina with boat slips, as well as cabins and RV sites. It is about 15 miles northwest of West Yellowstone making it close enough to the park to make for easy access, but far enough away to avoid the growing tourist infestation that is West Yellowstone. The RV park is on the north shore of Lake Hebgen which is formed by a dam on the Madison River. Just to the north east is the Gallatin River, so it is located between 2 excellent trout fishing rivers where I had a great time.