Butte County Sunrise / SunsetUnited StatesSDButte CountySunset5:15 pmBelle FourcheSunset at 5:15 pmSunset5:13 pmCastle RockSunset at 5:13 pmArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale