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1952 Map of Union Island, 1969 Print
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1952 Map of Union Island

USGS Topo · Published 1969

About this map

The low-lying delta lands of San Joaquin County are defined here by an intricate web of irrigation and drainage, where Union Island and the Stewart Tract are bound by the meandering courses of the Old River and Paradise Cut. This mid-century survey illustrates the industrial and agricultural infrastructure essential to the region, most notably the Sugar Refinery located just north of the growing city of Tracy. The landscape is etched with historical boundaries like the Grant Line and a network of water management features including the Fabian and Bell Canal and Sugar Cut.

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Map Details

Date Portrayed1952
Date Published1969
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.3 x 26.8 inches

Editions of this 1952 Union Island Map

Historical Maps of Tracy Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain