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1903 Map of El Cajon

Name: 1903 Topographic Map of El Cajon
Creator: U.S. Geological Survey
Published: 1930
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1930

About this map

The San Diego Cuyamaca and Eastern Railroad terminates at Foster in this turn-of-the-century look at the San Diego backcountry. The landscape is defined by the critical water infrastructure of the era, most notably the San Diego Flume, which winds through the hills and passes through numerous subterranean structures such as the Lankesheim Tunnel and Los Coches Tunnel to bring water to the developing citrus groves and settlements of the El Cajon Valley.

Settlement patterns center on rail and water access, with established townsites like Lakeside near Lindo Lake and Santee appearing alongside smaller locales such as Bostonia and Moreno. To the east, the terrain rises sharply toward the Cleveland National Forest and the Capitan Grande Indian Reservation, where the San Diego River carves through deep canyons including Featherstone Canyon. The map also identifies local landmarks like Mount Helix and Eucalyptus Pass, providing a clear view of the region's topography before mid-century suburbanization.