2017 Map of Coyer Reservoir

About this map

Coyer Reservoir and the surrounding drainage basins of Johnson County are documented here in detail, illustrating the water management strategies used in this part of Wyoming. The landscape is defined by its seasonal hydrology, where features like N Fork Fourmile Cr and S Fork Fourmile Cr weave through a series of named depressions. Local land use is tied to these water sources, as seen at Aberlin Reservoir and Flaxa Number 1 Reservoir. This 2017 survey shows how the area is partitioned by the Public Land Survey System, with the terrain marked by numerous local landmarks including Whisky Draw, Goble Draw, and Joe Draw. The road network is sparse, primarily consisting of routes such as Iberlin-4-Mile Rd and Irigaray Rd, which facilitate movement between the various draws and reservoirs.