1965 Map of Wild Horse Reservoir

About this map

Wild Horse Reservoir anchors the southern portion of this northern Montana landscape, situated at the confluence of several seasonal drainage systems. The terrain is defined by a network of coulees, including Tin Roof Coulee, Tressler Coulee, and Threemile Coulee, which channel intermittent water toward Wild Horse Creek. This 1965 survey, part of the Missouri River Basin development program, shows a sparsely populated ranching environment where Shaver Ranch stands as a primary landmark in the north. The map documents the intricate topography of the high plains, where numerous small depressions and basins collect water across the flats between West Alkali Creek and Fourmile Coulee. The presence of established ranch names and named watercourses like Spring Coulee and Black Coulee provides essential data for understanding the historical land use and water management of this portion of Phillips County.