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1893 Map of Sonora

Name: 1893 Topographic Map of Sonora
Creator: U.S. Geological Survey
Published: 1893
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1893

About this map

Sonora and its surrounding gold country are depicted here during the height of early California mining operations, long before modern damming altered the landscape. The geography is defined by the Tuolumne River and its major forks, where several early river crossings such as Ward Ferry and Moffat Bridge provided essential links between mining camps and emerging towns. This 1891 survey details the dense concentration of settlements including Jamestown, Chinese Camp, and Coulterville, which served as hubs for the region's extraction economy.

Evidence of the era's industry is scattered across the terrain, from the Olsen Mine near the Stanislaus border to the Red Cloud Mine in the east. Notable landmarks like the Hobron Mill and Benton Mill illustrate the processing infrastructure that supported the local population. The topographic detail highlights prominent natural features such as Table Mountain and the Pena Blanca Ridge, providing a comprehensive view of the territory before many of its smaller camps and original riverbanks were obscured by later developments.