Butte County Sunrise / SunsetUnited StatesSDButte CountySunset4:15 pmBelle FourcheSunset at 4:15 pmSunset4:12 pmCastle RockSunset at 4:12 pmArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale