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1987 Map of Cowhorn Valley

Name: 1987 Topographic Map of Cowhorn Valley
Creator: U.S. Geological Survey
Published: 1987
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1987

About this map

The Inyo Mountains dominate this high-elevation landscape, where extraction and navigation define the human presence within the Inyo National Forest. This late-twentieth-century survey documents a network of 4WD trails that connect remote geological features and mining sites, such as the Richie Mine and the Overholtz Mine. The terrain is marked by significant topographical relief, falling away from the mountain heights into the eponymous Cowhorn Valley and the Joshua Flats.

Evidence of historical prospecting is scattered throughout the region, with numerous unidentified prospect pits and mines dotting the ridges above Deadman Canyon and Crooked Road Canyon. The presence of a Sink Hole in the southeastern valley and the natural passage at Devils Gate highlight the specialized geography of Inyo County, providing a clear record of the area's infrastructure and land use before further modern changes occurred.