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1937 Map of San Francisquito

Name: 1937 Topographic Map of San Francisquito
Creator: U.S. Geological Survey
Published: 1951
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1951

About this map

Infrastructure development and the management of Angeles National Forest take center stage in this mid-century survey of the California mountains. The northern portion of the sheet is dominated by the San Francisquito Power House No 1, supported by a complex system of Aqueducts and a Surge Tank that reveal the era's focus on water and power for the growing Los Angeles basin. The landscape is defined by the steep ridges of Jupiter Mountain and the Sierra Pelona range, deeply carved by San Francisquito Canyon and Bouquet Canyon.

Evidence of fire management and forestry operations appears throughout the terrain, including several Firebreaks, a Fire Station, and a Guard Station. The map captures the presence of Camp 2 and the waters of Bouquet Reservoir to the east. For the local historian, the extensive network of service routes like the Los Angeles Transmission Road and the Fire Control Line illustrates the technological footprint required to maintain this critical watershed and utility corridor.