2014 Map of Cornwell Reservoir

About this map

Cornwell Reservoir serves as a vital water source in this dry stretch of Valley County, Montana. The landscape is defined by its drainage patterns and seasonal water points, which are essential for livestock and local land use. Local roads such as Cornwell Rd and trails like Jensen Trl provide the primary access through this rangeland, connecting the various coulees and spring-fed points. Notable terrain features including Alkali Coulee, Wire Grass Coulee, and Mooney Coulee reveal the natural topography and erosion patterns of the region. Scattered water sources such as Alkali Spring, Beaten Spring, and Hunt Spring suggest the importance of dependable water for survival and commerce in this northern plains environment, while Wolf Cr and Cherry Cr frame the wider drainage basin.