Butte County Sunrise / SunsetUnited StatesSDButte CountySunset7:23 pmBelle FourcheSunset at 7:23 pmSunset7:21 pmCastle RockSunset at 7:21 pmArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale