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1955 Map of Otay Mesa

Name: 1955 Topographic Map of Otay Mesa
Creator: U.S. Geological Survey
Published: 1957
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1957

About this map

Brown Field Naval Auxiliary Air Station dominates the western mesa in this mid-1950s survey of the California-Mexico borderlands. This military installation and its adjacent Bombing Range reflect the Cold War aviation footprint in San Diego County, situated just north of the United States Mexico international boundary. The landscape transitions from the flat expanse of Otay Mesa to the high ridges of the San Ysidro Mountains, where various canyons like La Nacion Canyon and O'Neal Canyon carve through the terrain.

Water management infrastructure is central to the area's development, anchored by the Lower Otay Reservoir and the Savage Dam. The presence of the Lower Otay Filtration Plant and a network of aqueducts and tunnels underscores the critical nature of water resources for nearby settlements. Historic land holdings including Otay Ranch, Bird Ranch, and the Kuebler Ranch dot the hillsides, while the rural Alta School serves the local community as the region maintains its ranching character alongside growing strategic interests.