2021 Map of Mercer Draw

About this map

Mercer Draw carves a distinct path through this Niobrara County landscape, serving as a central drainage feature in an area defined by its intermittent watercourses and ranch-land infrastructure. The terrain is structured by several key seasonal streams, including the winding Lightning Cr and its tributaries like Twentymile Cr and Little Cow Cr. These water sources are critical to the character of the region, where the vastness of the plains is punctuated by the occasional crossing of remote access routes such as Lightning Creek Rd and K-Field Rd. The map illustrates a classic Wyoming ranching environment, where township and range lines like t37n r66w provide the primary organizational grid for land ownership and resource management. The lack of concentrated settlements highlights the expansive, open-range nature of this part of the state in the early twenty-first century.