See also: Mickelson Trail, Custer State Park and Wind Cave National Park. For our purposes "Southern Hills" is the area south of highway 16 between Newcastle and Custer. Trail Name Length—Low—High—Change—Difficulty—Uses Links below the trail name provide more information and maps. J.H. Keith (Cascade Falls) —0.5 mi.—3470 ft—3470 ft—slight—Easy-Moderate—Wheelchairs, hikers —BH Business—TopoZone—Aerial— |