We stayed a week at Hart Ranch, SD. Very nice park. We stayed with our RPI for $15.50 a night. Large level concrete sites with good power, Dish worked good and AT&T and Verizon worked ok with 3-4 bars. They have a nice pool, jacuzzi, gas station, walking trails, big dog run and cafe. No dogs allowed on the north side of the park, which is good if you don't have pets. Good location for exploring Deadwood, Badlands, Wall, Custer, Rushmore, Rapid City and Hill city. Park is about 10 miles south of town and is very quiet. Will definitely stay here again.