1984 Map of Thoeny

About this map

The Canada-United States border defines the northern edge of this high plains landscape in Valley County, Montana. The settlement of Thoeny sits near the southern boundary, positioned within a network of drainage features that dominate the local topography. This 1984 provisional survey illustrates the intermittent nature of the prairie hydrology, where watercourses like Mc Eachern Creek and Chambers Creek carve intricate paths across the terrain. These coulees, including Dolson Coulee and Davison Coulee, represent the primary natural landmarks in an area otherwise characterized by its openness and proximity to the international line with Saskatchewan. A prominent landform labeled simply as Bluff stands out in the southwest, while Rock Creek provides further evidence of the region's seasonal water flow. The map captures a moment in the mid-1980s before modern agricultural or infrastructure changes altered this borderland ranching country.