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1990 Map of Palomas Mountains SW
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1990 Map of Palomas Mountains SW

USGS Topo · Published 1990

About this map

Yuma Proving Ground dominates the central landscape of this desert corridor, a region defined by the arid transition between the Tank Mountains to the north and the Palomas Mountains to the south. The mapping reflects a landscape utilized for both military operations and mineral extraction. Gold mining history is evident in the eastern peaks, where the Golden Harp Mine sits alongside an Open Pit Mine, a Mine Shaft, and various prospects. This 1990 edition, based on earlier surveys and 1987 field checks, traces the intricate drainage patterns and 4wd tracks that provide the only access through this rugged corner of Yuma County. Water sources are scarce in this environment, with Mesquite Jim Well serving as a vital named landmark for those navigating the backcountry. The map captures a moment when the area remained largely undeveloped, preserved for defense testing and historical mining interests.

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Map Details

Date Portrayed1990
Date Published1990
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1990 Palomas Mountains SW Map

This is the sole edition of this map. No revisions or reprints were ever made.

Historical Maps of Yuma County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain