2011 Map of Lonetree Coulee

About this map

Little Sandy Creek and Big Sandy Creek thread through this northern Chouteau County landscape, illustrating the intricate water management required for high-plains agriculture in the early 21st century. The terrain is defined by its dramatic erosion patterns, notably Alkali Coulee and Lonetree Coulee, which descend toward a small segment of the Missouri River visible at the southwestern edge. The map captures a transition in rural land use where traditional drainage is augmented by several man-made structures. Water security is highlighted by features such as Osterized Dam, Dodecanese Dam, and the specifically named MacDonalds Farm Reservoir Dam. A grid of local roads, including Warrick Rd and Mountain View Rd, provides the primary infrastructure connecting these remote ranching and farming operations.