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1942 Map of San Bernardino

Name: 1942 Topographic Map of San Bernardino
Creator: U.S. Geological Survey
Published: 1942
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1942

About this map

San Bernardino sits at the foot of the San Gabriel Mountains in this early wartime survey, appearing as a growing hub defined by its citrus industry and railway connections. The grid of the city and its surrounding settlements—including Fontana, Rialto, and Colton—is extensively detailed, showing the National Orange Show grounds and the Court House at the center of civic life. The landscape is a mix of agricultural tracts and heavy industry, most notably the Calif Portland Cement facility near Slover Mt.

The transportation network is dominated by the Atchison Topeka and Santa Fe and Southern Pacific railroads, which share the corridor through Cajon Canyon. Rural life is marked by landmarks like the Glen Helen Ranch and Cajon Sch to the north, while the southern reaches near the Santa Ana River show the development of Loma Linda and the Loma Linda Sanatorium. This map captures the region just as its role as a logistical and industrial center for Southern California was being solidified.