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1969 Map of Los Banos Valley

Name: 1969 Topographic Map of Los Banos Valley
Creator: U.S. Geological Survey
Published: 1971
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1971

About this map

Los Banos Valley and the surrounding Diablo Range foothills are depicted here shortly after the completion of the San Luis Dam project. The northern edge of the map shows a portion of the San Luis Reservoir State Recreation Area, while the central and southern reaches are defined by a complex network of canyons and ridges. Los Banos Creek winds through the valley floor, flanked by the Mustang Ridge and Ortigalita Ridge.

Tracing the remote landscape reveals a history of ranching and early land grants, such as the Panoche De Carrisalitos. Local landmarks include the Erreca Ranch and the isolated Spring +Grave near the headwaters of the South Fork. Notable terrain features like Lookout Mtn and Bullard Mtn overlook the numerous springs and canyons, including Chileno Canyon and Herrero Canyon, which once supported the area's pastoral life.