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1897 Map of Sonora

Name: 1897 Topographic Map of Sonora
Creator: U.S. Geological Survey
Published: 1910
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1910

About this map

Sonora and its surrounding gold country are depicted here during the final decade of the nineteenth century, showing a landscape defined by industrial extraction and rugged transit. The terrain is marked by the distinct ridge of Table Mountain and the deep cuts of the Tuolumne River, where river crossings like Ward Ferry, Moffat Bridge, and Split Rock Ferry provided essential links between mining camps. This survey captures the height of lode and placer operations, with prominent sites including the Olsen Mine, Red Cloud Mine, and Quail Mine scattered across the foothills and deep gulches.

Settlements like Chinese Camp, Jamestown, and Coulterville serve as hubs within a complex network of canyons and ridges. Evidence of the region's diverse industrial past is found in features like the Hobron Mill and the early development of water infrastructure near Lagrange, including the Turlock Canal. From the high elevations of Moccasin Peak down to the lower reaches of Merced Falls, the map traces a geography of rapid settlement and hard-rock labor.