A campground with 8 sites located in the Slim Buttes Unit near the Castles National Natural Landmark, one of two on the Sioux Ranger District. The campground is within commuting distance to Buffalo, SD. Camp sites: 8 Accessible Facilities: Toilet Trash Pickup: No Firewood: No No Reservations: This campground does not use a reservation system, it is managed on a first-come, first-served basis. There is a 14 day stay limit. Information: Sioux District Office Box 37, Main & First Camp Crook, SD 57724 (605) 797-4432