Campgrounds of Lassen Volcanic - Lassen Volcanic National Park (U.S. National Park Service) campgrounds offer both reservation and first-come, first-served sites. Group campsites are available within three campgrounds (Manzanita, Butte, and Juniper Lake) and Lost Creek Group. Reservations are available through www.recreation.gov or by phone at 1-877-444-6777; reservations are required for group sites and stock corrals. View individual campground pages for direct links to reservations for that site. Campsites fill by Friday afternoon on holiday weekends; Manzanita Lake, Summit Lake, and Juniper Lake are generally the first to fill. Each campsite has a picnic table, fire ring equipped with grill, and a metal bear box for food storage. There are no hookups in the park. A dump station is located near Manzanita Lake. Lassen Volcanic contains eight campgrounds. Juniper Lake and Southwest Walk-in are first-come, first-served only. The other six. The park may post reservation cards on non-reservable sites for park-sponsored users such as researchers or volunteers.