2017 Map of Twelvemile Sink

About this map

Twelvemile Sink sits at the heart of this high-desert landscape in Sweetwater County, where the terrain is defined by a series of deep drainages including Twelvemile Canyon, Eighteenmile Canyon, and Buckhorn Canyon. This 2017 survey by the U.S. Geological Survey illustrates the modern administrative and transport network overlying the traditional topography of the Wyoming Basin. The map details the Public Land Survey System (PLSS) grid sections, such as t24n r109w, which organize this vast territory. Sparse infrastructure is limited to critical transit corridors like Monument Butte Rd and Eighteen Mile Rd, providing essential access through the winding draws of Lombard Canyon. For the land manager or local historian, this sheet offers a precise record of the hydrology and topographic features that dictate movement and usage in this arid region of Wyoming.