Castle Peak Camping Area in South Dakota offers stunning views of the Black Hills and access to nearby hiking trails. The campground has 31 first-come-first-serve sites, all equipped with a picnic table and fire ring. Amenities include vault toilets and potable water. Nearby activities include hiking, fishing, and sightseeing in the nearby towns of Hill City and Keystone. The best time to visit is from June to September with average temperatures ranging from 60-80°F.