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1956 Map of Durmid SE, 1992 Print
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1956 Map of Durmid SE

USGS Topo · Published 1992

About this map

Salton Sea waters dominate this mid-century topographic survey, recording the unique hydrological and military character of Imperial County. The map documents an expansive Test Base spanning the southern waters, part of a complex boundary shared with the Salton Sea National (Naval Reservation) Wildlife Refuge. These designations highlight the area's dual role as a sensitive ecological sanctuary and a controlled military zone.

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Map Details

Date Portrayed1956
Date Published1992
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1956 Durmid SE Map

Historical Maps of Imperial County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain