2015 Map of Chalk Hills

About this map

The Chalk Hills rise as a prominent topographic feature in this high-plains landscape where Carbon and Albany counties meet. This 2015 survey documents the drainage patterns of the Little Medicine Bow River and its S Fork, which carve through the terrain alongside watercourses like Threemile Creek. The land is defined by deep geological depressions such as Chalk Draw and Slate Draw, illustrating the erosional character of this region. A network of rural routes, including Shirley Casper Rd and Little Medicine Rd, connects these remote elevations to the broader livestock and ranching country of southeastern Wyoming. While few permanent structures are noted, the presence of the Three Mile Reservoir indicates the essential role of managed water resources in supporting this arid upland environment.