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1932 Map of Tustin

Name: 1932 Topographic Map of Tustin
Creator: U.S. Geological Survey
Published: 1932
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1932

About this map

Agricultural development and early scientific infrastructure define this 1932 survey of central Orange County. The map documents the sprawling Irvine Ranch Headquarters and the surrounding network of citrus groves and field crops that once dominated the Lomas De Santa Ana foothills. A remarkable piece of scientific history is captured near the Aliso Gun Club, where the Michelson Vacuum Tube (Measurement of Light) is plotted, marking the site of landmark experiments in physics.

Settlement patterns follow the major rail lines of the Southern Pacific and Atchison Topeka and Santa Fe, connecting small communities like Venta, Myford, and Delhi (Gloryetta PO). The transition from the dense street grid of Santa Ana and Tustin into the open drainage basins of San Diego Creek and Peters Canyon Wash illustrates the region's landscape before post-war suburbanization. Rare early aviation details are also preserved, such as Martins Landing Field and Beacon No 8.