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1967 Map of Prado Dam, 1974 Print
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1967 Map of Prado Dam

USGS Topo · Published 1974

About this map

The Prado Flood Control Basin dominates the eastern half of this landscape, where Chino Creek meets the Santa Ana River behind the massive Prado Dam. This late-1960s survey illustrates a region in significant transition, with purple-tinted revisions showing the rapid expansion of Los Serranos and industrial development encroaching on traditional ranching lands like McDermont Ranch. Large-scale institutional footprints are prominent, including the California Institution for Men and the California Institution for Women (Frontera PO).

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Map Details

Date Portrayed1967
Date Published1974
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions22.1 x 26.9 inches

Editions of this 1967 Prado Dam Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain