2012 Map of Coyer Reservoir

About this map

Fourmile Ranch and its associated Iberlin Strip Airport anchor this high plains landscape in Johnson County, Wyoming. The drainage patterns of the Fourmile Cr system, including its North, South, and Joe tributaries, dictate the placement of ranching infrastructure. Ranch roads like Iberlin 4-Mile Rd and Hoe Ranch Rd navigate between numerous namesake draws and reservoirs, which serve as critical water management points in this arid terrain. Small-scale water storage features like Coyer Reservoir, Iberlin Reservoir, and Flaxa Number 1 Reservoir are distributed along natural seasonal channels like Cat Cr, showing how the local cattle industry adapted to the geography of the Powder River Basin region.