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1964 Map of Zaca Lake

Name: 1964 Topographic Map of Zaca Lake
Creator: U.S. Geological Survey
Published: 1965
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1965

About this map

Zaca Lake remains the central natural focal point of this coastal range landscape, surrounded by the high ridges of the San Rafael Mountains and the distinctive Zaca Ridge. The 1964 field survey reveals a terrain defined by complex watercourses like the Sisquoc River and numerous springs, including Tunnel Spring and Sulphur Spring. Human activity is marked by small outposts and industrial history, such as the Asphaltum Mine located near Asphaltum Creek.

The presence of Tunnel Ranch and Birabent suggests the localized agricultural and ranching footprint within the Los Padres National Forest. Cultural and historical details are preserved through labels for Graves and Ruins along the riverbanks, alongside the descriptive Schoolhouse Canyon and Pickett Corral. This survey captures the region just as photogrammetric mapping began to provide precise detail for these steep canyons and remote peaks like Zaca Peak and Lookout Mtn.