2024 Map of Black Coulee

About this map

The high plains of Rosebud County are defined by an intricate network of drainage channels and catchments, notably the Corny Coulee Reservoir and Black Coulee Reservoir. This landscape is characterized by its coulees—steep-walled drainage valleys—which dictate the movement of water across the terrain toward larger systems like Little Porcupine Creek. The topography is marked by distinctive elevations such as the Schoolmarm Buttes in the southeast, providing a vertical contrast to the winding paths of Stellar Creek and Wagon Box Coulee. Small-scale water management is evident through features like the Hay Cr Reservoir on Hay Creek, reflecting the importance of water storage in this expansive ranching and grazing environment. Navigation through the area relies on the singular artery of Little Porcupine Creek Rd, which tracks the seasonal watercourses through the township and range divisions of T8N and T7N.