Butte County Sunrise / SunsetUnited StatesSDButte CountySunset8:26 pmBelle FourcheSunset at 8:26 pmSunset8:25 pmCastle RockSunset at 8:25 pmArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale