2017 Map of Fourmile Knoll

About this map

The historic California-Oregon Trl cuts across this high-desert terrain in Sweetwater County, tracing a path through the northern portion of the landscape. This area of Wyoming is characterized by sparse, open topography punctuated by landforms like Fourmile Knoll and the low-lying Sublettes Flat. Transport in the region is defined by the intersection of ancestral migration routes and modern access such as Eighteen Mile Rd, which traverses the central sections of the map. In the southern reach, the terrain descends toward Simpson Gulch, reflecting a landscape of seasonal drainage and isolation. The map preserves the spatial relationship between nineteenth-century overland trails and the grid of the Public Land Survey System, showing how these historic corridors persist in the contemporary geography of the American West.