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1925 Map of San Joaquin

Name: 1925 Topographic Map of San Joaquin
Creator: U.S. Geological Survey
Published: 1925
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1925

About this map

San Joaquin serves as the primary hub of this Central Valley landscape, situated along the Southern Pacific railroad line during the mid-1920s. The region is defined by an intensive network of water management infrastructure, including the Main Canal, Beta Main Canal, and Enterprise Canal, which illustrate the early engineering required to transform the arid plains of Fresno County into productive farmland.

The presence of the San Joaquin Sub Station and the branching Tap Ditch highlights the integration of utilities and irrigation into the rural economy. To the southeast, the small settlement of Caldwell sits near the winding course of the Fresno Slough, providing a natural contrast to the geometric precision of the irrigation channels and the straight-line path of the Main Bypass. This survey captures the area just as the industrialization of agriculture was reshaping the traditional terrain.