Prairie County RainfallUnited StatesMTPrairie County5%Terry 5% Chance 10%Fallon 10% Chance Clark ReservoirCoal Creek ReservoirFallonGrant ReservoirHomestead ReservoirHunter Creek ReservoirMcClure ReservoirMildredMurn ParkSaugusSilvertip ReservoirSouth Fork ReservoirTerryTerry Airport