2014 Map of Phillippi Reservoir

About this map

Phillippi Reservoir serves as a central landmark in this remote corner of Carter County, Montana. The landscape is defined by its intricate drainage network, with several creek systems converging near the reservoir, including Soda Cr and N Soda Cr. The terrain is marked by the Flattops in the east, while drainage channels like Boxelder Cr, Park Cr, and Steep Cr carve through the southern sections. This area represents a classic example of high-plains water management and rangeland navigation, where access is provided by the winding path of Hammond Rd. Farther south, the smaller tributaries of Big Groat Cr and Little Groat Cr illustrate the complex watershed that supports the local ranching environment. This map captures the region's sparse settlement patterns and the vital importance of seasonal water sources in the northern plains.