Butte County Sunrise / SunsetUnited StatesSDButte CountySunset8:44 pmBelle FourcheSunset at 8:44 pmSunset8:43 pmCastle RockSunset at 8:43 pmArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale