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1966 Map of Sanhedrin Mtn.

Name: 1966 Topographic Map of Sanhedrin Mtn.
Creator: U.S. Geological Survey
Published: 1984
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1984

About this map

Sanhedrin Mountain dominates this portion of the Mendocino National Forest in the mid-1960s, a landscape defined by sharp elevation changes and an intricate network of drainages. The rugged character of the Mendocino and Lake County line is evident through features like Impassable Rock and the high points of Big Signal Peak and Little Signal Peak. Human presence is sparse and localized, marked by established spots such as Elk Creek Ranch and Crocker Place.

Water sources are vital markers in this terrain, ranging from the named heights of Bennett Valley to the low-lying Lily Pad Lake and Summit Lake. The map reveals a reliance on a network of unpaved transit, including the Sportsman Trail and various jeep trails that connect remote springs like Vulture Spring and Sulphur Springs. This survey captures a moment before modern infrastructure reached these interior ridges, preserving the original place names of the local topography.