Siwash Reservoir is a reservoir located in Phillips County, Montana. It appears on the Pea Ridge USGS 7.5-minute topographic quadrangle. The nearest populated place is Fourchette (historical), approximately 1.9 miles to the WSW.
Phillips County · Montana
Siwash Reservoir is a reservoir located in Phillips County, Montana. It appears on the Pea Ridge USGS 7.5-minute topographic quadrangle. The nearest populated place is Fourchette (historical), approximately 1.9 miles to the WSW.