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1949 Map of Sonora

Name: 1949 Topographic Map of Sonora
Creator: U.S. Geological Survey
Published: 1949
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1949

About this map

The geological and industrial heritage of the California Mother Lode is etched into the landscape of Table Mountain, where narrow ravines and plateaus are dotted with mid-century mining operations. The topographical data, based on 1945 aerial photography, centers on the regional hub of Sonora and its proximity to the historic town of Jamestown. This era shows a working landscape where hard-rock mining remained a visible part of the economy, evidenced by the Harvard Mine and Golden Rule Mine.

Smaller settlements and stops like Tuttletown, Montezuma, and Chinese Station reveal the dispersed population patterns common in Tuolumne County before modern development intensified. Water management is a primary feature of the terrain, with the Melones Res and various reservoirs like O Neil Reservoir serving the agricultural and industrial needs of the region. Distinctive landmarks such as Jackass Hill and Pulpit Rock provide orientation for those tracing the historic geography of the Gold Country.