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1986 Map of Red Hill

Name: 1986 Topographic Map of Red Hill
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

The Chocolate Mountains dominate this landscape, characterized by the intricate drainage patterns of the Mc Allister Wash and Yuma Wash. As a provisional 1986 edition, the map focuses heavily on the topographical relief and desert terrain within the restricted boundaries of the Yuma Proving Ground. The presence of landmarks such as Trip Mountain and the namesake Red Hill provide essential orientation points in an area largely devoid of civilian infrastructure.

Because this territory falls under military jurisdiction, the map omits the typical grid of homesteads or rural settlements found in contemporary surveys of the West. Instead, it offers a specialized view of the desert floor and mountain passes as they were used for military testing and training during the mid-1980s. The dense contouring reveals a complex system of ridges and dry washes that define the isolation of this corner of Arizona.