This isn't one campground, its dozens. Beaver Creek is the largest county park in the nation. It technically requires a $55 annual park pass for camping or usage of the park. The pass can be purchased at Stromberg Sinclair in Havre or other locations in Havre. There are two lakes with decent fishing in the park and a lovely stream. Mount Otis has a well-maintained trail to the top, and there is a 3 mile nature trail. I use this park all the time! Perfect for picnics, camping by RV or tent, hiking, fishing and bon fires.