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1902 Map of Jackson

Name: 1902 Topographic Map of Jackson
Creator: U.S. Geological Survey
Published: 1948
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1948

About this map

Jackson and San Andreas serve as the primary hubs in this late-19th-century landscape, where the Sierra Nevada foothills meet the industrial expansion of the Gold Country. The terrain is defined by the deep cuts of the Mokelumne River and Calaveras River, which carved the canyons that directed early settlement and transportation. Resource extraction and transit define the region, with the Amador Branch Railway reaching Ione and the San Joaquin and Sierra Nevada Railroad terminating at Valley Springs.

Smaller camps and waypoints like Mokelumne Hill, Railroad Flat, and Glencoe dot the ridges, illustrating the transition from mining operations to established agricultural and timber communities. Traces of early industrial infrastructure appear at the Rich Gulch Mine and several noted sawmills, while the Salt Spring Valley Reservoir indicates the growing necessity of water management for both mining and local life in the foothills.