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1920 Map of Pacheco Pass
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1920 Map of Pacheco Pass

USGS Topo · Published 1920

About this map

The Diablo Range dominates the western half of this 1920 survey, dropping sharply into the agricultural expanse of the San Joaquin Valley to the east. This landscape represents a critical transit corridor before the modern era of highway expansion, centered on the ancient crossing at Pacheco Pass. The early industrial footprint of the region is visible through the Bald Eagle Mine tucked into the canyons and the Shell Pumping Sta on the valley floor, indicating the intersection of mineral extraction and burgeoning energy infrastructure.

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Map Details

Date Portrayed1920
Date Published1920
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions16.24 x 19.85 inches

Editions of this 1920 Pacheco Pass Map

Historical Maps of Gustine Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain