Butte County Sunrise / SunsetUnited StatesSDButte CountySunset7:15 pmBelle FourcheSunset at 7:15 pmSunset7:14 pmCastle RockSunset at 7:14 pmArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale