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1952 Map of Duncan Peak

Name: 1952 Topographic Map of Duncan Peak
Creator: U.S. Geological Survey
Published: 1963
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1963

About this map

Tahoe National Forest landscape in the early 1950s is defined by a dense network of mining operations and fire lookouts scattered across the ridges of the Sierra Nevada. Mining heritage is etched into the terrain through numerous subterranean workings, including the Golden Fleece Tunnel, Union Tunnel, and the Hungry Hollow Tunnel. These industrial sites are often located near steep drainage points like Secret Canyon and Manila Canyon, indicating the heavy reliance on local hydrology for processing and extraction.

Strategic high points like Duncan Peak and Big Valley Bluff serve as fire observation posts, with designated Duncan Peak Lookout and Big Valley Bluff Lookout stations monitoring the timberlands. The North Fork American River carves through the northern section of the map, while lower elevations feature isolated landmarks such as the Secret House Mine and the curious label for Beauty Store, suggesting small nodes of activity along remote mountain roads.