1956 Map of Iris Wash, 1985 Print
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1956 Map of Iris Wash

USGS Topo · Published 1985

About this map

The Chocolate Mountains dominate the northeastern corner of this Imperial County landscape, giving way to the broad alluvial plains of East Mesa. In the mid-1950s, this desert expanse was defined by heavy military use and significant water infrastructure projects. The Aerial Gunnery Range spans much of the central terrain, while the south reveals the footprint of the Camp Dunlap Naval Reservation and the specific location of Camp Dunlap (Site). Industrial activity is represented by the Imperial Buttes Mine tucked against the mountain foothills.


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Map Details

Date Portrayed1956
Date Published1985
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.9 inches

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Source Details

CopyrightPublic Domain