2014 Map of Middle Eighth Coulee

About this map

Fort Peck Lake defines the southern reach of this Missouri River country, its sprawling fingers reaching into the rugged drainage systems of Valley County. This landscape is a complex network of coulees and ridges, where seasonal water management is evident through a series of upland catchments including Tiger Reservoir, Magruder Reservoir, and Stebley Reservoir. The map tracks the intricate erosion patterns of the Missouri Plateau, following the branching paths of Middle Eighth Coulee, Upper Eighth Coulee, and Lower Eighth Coulee. To the west, the elevation rises toward Graveyard Hill, a name suggesting early local significance or landmark status. Settlement remains sparse, with the primary human footprint limited to the high-country roads like Stebly Rd and Shuffield Rd that navigate the divides between the Mid Eighth Ridge and Seventh Ridge.