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1938 Map of Mt. Boardman

Name: 1938 Topographic Map of Mt. Boardman
Creator: U.S. Geological Survey
Published: 1957
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1957

About this map

Mt. Boardman stands as a prominent landmark in this 1938 survey, which covers the mountainous borderlands where Alameda, San Joaquin, and Stanislaus counties converge. The landscape is defined by an intricate network of deep canyons and ridgelines, including Arkansas Canyon and Wilcox Ridge, supporting a scattered community of high-altitude ranching and industry. Mining operations like the Westvaco Mine, Western Mine, and Adobe Mine point to the area's geological extraction history, while the presence of the San Antonio Valley Sch and the Stanislaus Co Road Camp indicate a established local infrastructure.

Family lineages are preserved through numerous ranch labels such as Winsgar Ranch, Gerber Ranch, and the Livermore Dude Ranch. Unique spiritual and cultural sites also appear, notably Shanti Ashrama near Sulphur Creek. The map details the remote transition from San Antonio Valley into the drainage of Del Puerto Creek, capturing a moment before modern accessibility altered these steep California ranges.