2024 Map of Lonetree Coulee

About this map

The Upper Missouri River Breaks National Monument anchors the southwestern corner of this landscape, where the protected corridor of the Missouri Wild and Scenic River defines the local topography. This region of Chouteau County is characterized by a network of drainage features, most notably Lonetree Coulee, Alkali Coulee, and Crooked Coulee, which carve through the high plains toward the river system. Northward, the perennial flows of Big Sandy Creek and Little Sandy Creek cross the terrain, illustrating the critical water sources for this arid ranching environment.