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1915 Map of Priest Valley

Name: 1915 Topographic Map of Priest Valley
Creator: U.S. Geological Survey
Published: 1937
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1937

About this map

New Idria and the nearby Idria P.O. stand as significant hubs in this rugged interior landscape where industrial extraction and ranching defined the early 20th-century economy. The topography is dominated by the Mustang Ridge and Joaquin Ridge, with numerous specialized mines such as the Monterey Coal Mine, Picacho Mine, and Alpine Mine punctuating the mountain slopes. The survey captures a network of rural school districts, including Columbus School, Tully School, and Paris School, reflecting the scattered settlement patterns of family ranchers and miners in the canyon valleys.

Transportation corridors follow the natural geography, with the Southern Pacific Railroad tracing the Salinas River valley in the southwest near San Ardo. In the center of the quadrangle, the Peachtree Creek and San Lorenzo Valley provided essential routes for travel and commerce. Local landmarks like Cleveland Rock and The Pinnacles serve as notable navigational points amidst the complex system of peaks, including San Benito Mtn and Santa Rita Pk.