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2021 Map of Fourmile Reservoir

Name: 2021 Topographic Map of Fourmile Reservoir
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

The Reno Hill Anticline defines the geological character of this Johnson County landscape, where the high point of Reno Hill overlooks a network of seasonal drainages and cattle country. This modern survey illustrates the rugged drainage systems typical of the Powder River Basin, centered on the Fourmile Reservoir and its namesake, Fourmile Cr. The terrain is deeply incised by family-named and topographic features such as Taylor Draw, Voelkner Draw, and Pheasant Draw.

Infrastructure in this remote ranching region is primarily represented by the Buffalo Sussex Cutoff Rd, which traverses the eastern half of the quadrangle. The map details the complex hydrography of the northern and southern forks of the creek, including the N Fork Fourmile Cr, which feeds into the reservoir. This detailed view of the land provides a baseline for understanding contemporary land use and water management in the Wyoming high plains.