
All sites in June are available only on a first-come, first-served basis. In July, August, and September, 75% of the sites can be reserved in advance, either online or by calling 888-774-2728. The other 25% are first-come, first-served. In July and August, the campground usually fills completely, often by mid-afternoon. The campground is operated by the park's concessioner, a company called Xanterra Travel Collection.