2021 Map of Lander SE

About this map

Lyons Valley and the surrounding high desert terrain southeast of the Wind River Range are defined by a complex network of irrigation and drainage. The Little Popo Agie River meanders through the northwest, feeding essential water systems like Lyons Ditch, Wise Ditch, and Millard Ditch. These human-made channels highlight the critical importance of water management in Fremont County's ranching and agricultural history. To the south and east, the landscape transitions into a series of named erosional features, including Coal Mine Draw and Coal Mine Gulch, which point to the region's mineral interests. Modern recreational use is visible through the Johnny Behind The Rocks Trail System, while landmarks such as Monument Butte and the Blue Ridge provide significant topographic orientation for those studying the area's physical geography.