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1903 Map of El Cajon

Name: 1903 Topographic Map of El Cajon
Creator: U.S. Geological Survey
Published: 1941
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1941

About this map

El Cajon Valley serves as a focal point for settlement and infrastructure at the start of the 20th century. The intricate engineering of the San Diego Flume winds through the hills, punctuated by several major works including the Lankersheim Tunnel and Cape Horn Tunnel. This hydraulic network parallels the San Diego River and reflects the era's significant investment in water transport for regional agricultural growth.

Along the western edge, the Southern Pacific Lines connects the towns of Santee, Riverview, and Lakeside, where Lindo Lake provides a natural landmark. To the east, the landscape transitions into the steep terrain of El Cajon Mt. and the protected lands of the Capitan Grande Indian Reservation. Smaller outposts like Foster, Moreno, and Flynn Springs are linked by canyon roads, while the Sweetwater River defines the southern boundary near the Sequan Indian Reservation.