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1972 Map of Coyer Reservoir

Name: 1972 Topographic Map of Coyer Reservoir
Creator: U.S. Geological Survey
Published: 1975
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1975

About this map

Coyer Reservoir and a network of ephemeral watercourses define this high plains landscape in Johnson County. Part of a larger program for the development of the Missouri River Basin, the 1972 data illustrates a ranching and resource-extraction economy. The drainage system of Fourmile Creek is the primary geographic feature, with its North Fork and South Fork reaching across the terrain alongside numerous named draws, including Whisky Draw, Goble Draw, and Cat Draw.

Evidence of local aviation and ranching infrastructure is visible at the Fourmile Ranch and its adjacent Landing Strip. The presence of a Well and Bridge Well further suggests the critical importance of water management in this arid environment. This survey captures the region just as photogrammetric mapping began providing high-precision detail of these sparsely populated rangelands, documenting the section lines and remote landmarks essential for land management.