Butte County Sunrise / SunsetUnited StatesSDButte CountySunset4:36 pmBelle FourcheSunset at 4:36 pmSunset4:34 pmCastle RockSunset at 4:34 pmArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale