2020 Map of Ryan Creek

About this map

Sourdough serves as a focal point for this section of Sweet Grass County, where the high plains landscape is defined by a dense network of coulees and intermittent drainages. The Glass-Lindsay-Lakes Lower Reservoir in the north captures runoff in an area characterized by seasonal water flow through features like Tangen Draw and Nash Gulch. The map illustrates a rural Montana landscape shaped by local ranching and water management, with the terrain falling away towards Sweet Grass Creek and Ryan Cr. Connectivity across these sections is maintained by local thoroughfares such as Rapelje Rd and Sourdough Rd, which follow the contours of the land between Hamilton Cr and the southern Gunnerson Draw.