1951 Map of Mexican Pass SE

About this map

The Wind River Indian Reservation occupies the northern half of this mid-century survey, where the drainages of Cottonwood Creek and Muddy Creek define the arid landscape. The map captures a specific moment in the hydraulic development of the Missouri River Basin, most notably marking the Boysen Reservoir (Proposed) along the eastern edge before the land was inundated. This transition from open creek-beds to planned reservoir highlights the changing geography of Fremont County during the early 1950s. Across the center, the prominent Sand Mesa stands between two vital transit corridors: the Mexican Pass Road and the Muddy Creek Road. These routes, along with a noted Gaging Sta on the lower creek, represent the essential infrastructure of a region balancing traditional reservation land with new water reclamation projects.