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1920 Map of Pacheco Pass, 1947 Print
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1920 Map of Pacheco Pass

USGS Topo · Published 1947

About this map

The Diablo range dominates this landscape, where the transition from the steep peaks of the California Coast Ranges meets the flat agricultural expanse of the Joaquin Valley. Centered on the rugged crossing at Pacheco Pass Road, the map reveals a land defined by canyon drainage and isolated ranching operations like the Fifield Ranch and San Luis Ranch. The eastern edge of the survey captures early industrial infrastructure, specifically the Shell Pumping Sta, which hints at the growing energy network moving through the valley during this period.

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Map Details

Date Portrayed1920
Date Published1947
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions16.6 x 20.7 inches

Editions of this 1920 Pacheco Pass Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain