1983 Map of Johnson Reservoir NW

About this map

The high plains of eastern Montana dominate this 1983 provisional survey, characterized by the intricate drainage systems that carve through Dawson County. The landscape is defined by the winding course of the North Fork Deer Creek and its various tributaries, which shape the local topography. Localized drainage patterns such as Brush Coulee and Bluff Creek illustrate the erosional forces typical of this semi-arid environment, where water flow is often seasonal but critical to the land's utility. Significant for researchers tracing early ranching and land use, the map displays the transition between townships T 20 N and T 19 N, alongside seasonal watercourses like Corral Creek. These features indicate a terrain primarily managed for livestock and agricultural purposes, with few permanent structures but a clear network of natural landmarks used to navigate the open range.