Butte County Sunrise / SunsetUnited StatesSDButte CountySunset8:13 pmBelle FourcheSunset at 8:13 pmSunset8:12 pmCastle RockSunset at 8:12 pmArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale