2020 Map of Phillippi Reservoir

About this map

Phillippi Reservoir lies at the heart of this southeastern Montana landscape, serving as a vital water catchment for the drainage basins of N Soda Cr and Soda Cr. This corner of Carter County is defined by a sparse network of prairie waterways, where the terrain gradually rises toward the distinct landforms of the Flattops in the east. The primary artery through this rangeland is Hammond Rd, which cuts diagonally across the township lines, tracing a path between the various creek systems including Boxelder Cr and Park Cr. The southern portion of the survey is marked by the headwaters of Big Groat Creek and Little Groat Cr, illustrating the subtle topographic divides that govern the movement of water across this high-plains environment.