2020 Map of Lost River

About this map

Milk River and Lost River dominate this northern landscape, carving deep, winding paths across Hill County. The convergence of these waterways creates a complex drainage system characterized by several named geological features, including the broad depressions of Sahara Coulee and Ninemile Coulee. This 2020 survey illustrates the remote character of the region, where human infrastructure is limited to a sparse grid of rural routes such as RD 240 N and RD 135 N. The terrain is defined by the sharp contrast between the flat high plains and the eroded river valleys, providing a clear record of the Public Land Survey System boundaries through township and range markers like t37n r10e. Landowners and researchers can use this map to trace the exact intersection of local coulees and watercourses, such as Spring Coulee in the east.