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1948 Map of Sonora

Name: 1948 Topographic Map of Sonora
Creator: U.S. Geological Survey
Published: 1953
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1953

About this map

Table Mountain dominates the landscape of this Tuolumne County region, its flat-topped basalt ridge carving a distinct path through the Mother Lode mining country. The survey captures the gold country as it transitioned in the late 1940s, highlighting the proximity of legendary literary sites like the Mark Twain Cabin near Jackass Hill and Tuttletown. The industrial character of the era is evident through the network of the Sierra RR, which connects the town of Sonora with lower settlements such as Jamestown and Chinese Station.

Tracing the complex network of flumes and ditches, like the one feeding O Neil Reservoir, reveals the water infrastructure necessary for both mining and agriculture. Significant mining operations, including the Harvard Mine and Golden Rule Mine, are noted alongside smaller settlements like Campo Seco, Quartz, and Stent. This detailed documentation provides a clear look at the early 20th-century footprint of the region before further modern development altered these foothill communities.