Stanley County South Dakota (Vacant / Not In Use) has 3 places on the National Register of Historic Places including 3 places of National significance. Significant places include Breeden Village, Buffalo Calf Archeological Site and Cattle Oiler Archeological Site.
Prehistoric cultural affiliation(s) include Plains Village, Initial Middle Missouri Variant, (Extended Coalescent Variant) and (Initial Middle Missouri Variant dating back to 1000. Prominent architectural styles found in Stanley Country are .