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1941 Map of Santa Susana

Name: 1941 Topographic Map of Santa Susana
Creator: U.S. Geological Survey
Published: 1967
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1967

About this map

The Santa Susana Mountains dominate this 1941 landscape, a rugged divide separating the agricultural and growing residential basins of the Santa Susana Valley and San Fernando Valley from the canyon-cut hills to the north. Extensive petroleum development is evident throughout the terrain, with operations at the Pico Oil Field, Oak Canyon Oil Field, and Newhall-Potrero Oil Field signaling the region's mid-century industrial base.

Settlement patterns reveal a mix of established rail hubs like Newhall and Saugus alongside numerous private holdings such as Sepulveda Ranch and Hathaway Ranch. Transportation is anchored by the Southern Pacific railroad, which threads through the mountains via the Tunnel near Fremont Pass. This survey, revised by the 29th Engineers, also documents local infrastructure ranging from the Wayside Honor Farm to the Dry Canyon Reservoir within the Angeles National Forest.