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1960 Map of Potrero

Name: 1960 Topographic Map of Potrero
Creator: U.S. Geological Survey
Published: 1967
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1967

About this map

Potrero and the surrounding borderlands of southern San Diego County are captured here during the early 1960s, revealing a landscape defined by significant water management and international boundary markers. The map details the massive catchments of Barrett Lake and Morena Reservoir, controlled by Barrett Dam and Morena Dam, which were essential to the region's water infrastructure. To the south, the California Baja California line is clearly delineated, anchored by the Customhouse near Tecate.

Researchers will find traces of older transit and settlement patterns, including the Old Stage Route winding through the hills and the Sd & Ae Rr following the southern corridor. Local history is preserved in named family holdings like Bratton Ranch and Wulff Ranch, alongside the Marine Memorial and the high-elevation Lookout at Los Pinos Mtn. The rugged terrain of the Cleveland National Forest dominates the northeast, punctuated by prominent peaks such as Gaskill Peak and Tecate Peak.