2020 Map of Peterson Point

About this map

Fort Peck Lake dominates this landscape on the border of Valley and Garfield counties, where the Missouri River's impoundment has created a complex shoreline of deep bays and finger-like peninsulas. The northern portion of the map is defined by the high ground of Harper Ridge and the broad waters of Sutherland Creek Bay. South of the lake, the terrain is deeply dissected by a network of drainage features known locally as coulees. These include the descriptively named Cold Turkey Coulee, Rattlesnake Coulee, and Bighorn Coulee. The presence of these named ravines, alongside the Peterson Point promontory and the southern Hell Creek Bay, illustrates the transition from high prairie ridges to the massive reservoir's edge in a region where geography and water management are fundamentally linked.