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1959 Map of Briones Valley, 1969 Print
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1959 Map of Briones Valley

USGS Topo · Published 1969

About this map

The rugged ridges and deep canyons of Contra Costa County define this 1959 landscape, captured just before the rapid suburban expansion shown in later purple revisions. High elevations like Grizzly Peak and Vollmer Pk overlook a series of massive water projects, most notably the San Pablo Reservoir and the Lafayette Reservoir. These reservoirs, managed by the State of California Department of Water Resources, underscore the critical infrastructure development of the mid-20th century.

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Map Details

Date Portrayed1959
Date Published1969
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.1 x 26.9 inches

Editions of this 1959 Briones Valley Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain