Loading map...

1947 Map of San Joaquin

Name: 1947 Topographic Map of San Joaquin
Creator: U.S. Geological Survey
Published: 1947
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1947

About this map

The agricultural grid of Fresno County is defined here by the intersection of irrigation engineering and rail transport in the mid-1940s. The town of San Joaquin serves as the central hub, situated along the Southern Pacific railroad line and surrounded by a dense network of named roads like Manning Ave and Mountain View Ave. This revision captures the landscape as it functioned after the initial 1923 mapping, highlighting the critical role of water management in the Central Valley.

Hydrological features dominate the eastern and southern portions of the sheet, where the Fresno Slough winds through the terrain alongside the Fresno Slough Bypass (Abandoned). The presence of the Main Canal, Crescent Ditch, and scattered wells illustrates the transition from natural watercourses to a controlled irrigation system. Small settlements like Caldwell and utility infrastructure such as the San Joaquin Sub Station provide clear points of reference for local historians and genealogists tracing the development of this rural corridor.