2017 Map of Lonetree Coulee

About this map

The Missouri River cuts through the southwestern corner of this landscape, carving deep relief into the surrounding high plains of north-central Montana. The terrain is defined by a network of drainage features, including the prominent Lonetree Coulee and Alkali Coulee, which illustrate the complex erosion patterns common in this semi-arid region. These coulees serve as the primary topographical markers in a territory primarily organized by its rural road network and public land survey system. Local transit and access are facilitated by routes such as Judith Landing Rd and Warrick Rd, which follow the contours of the land above Little Sandy Cr and Big Sandy Cr. This survey provides a modern baseline for understanding the physical geography and road corridors that have historically connected these remote ranching and agricultural lands between the river and the inland plains.