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1948 Map of Columbia

Name: 1948 Topographic Map of Columbia
Creator: U.S. Geological Survey
Published: 1969
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1969

About this map

The gold country of the Mother Lode is captured here in the mid-1940s, centered on the complex drainage of the Stanislaus River and its multiple forks. This area is defined by its deep mining heritage, evidenced by a dense network of extraction sites like the Sheep Ranch Mine, Mercer Quartz Mine, and the Springfield Mine. Beyond the industrial activity, the map highlights the preservation of the region's natural and civic history through the Calaveras Big Trees State Park and Columbia Historic State Park.

Settlement patterns follow the narrow flats and gulches, with established communities such as Murphys, Douglas Flat, and the former mining hub of Columbia. Smaller, curiously named locales like Squabbletown and Browns Flat appear alongside infrastructure of the era, including the Phoenix Powerhouse and Parrotts Ferry Bridge. The terrain transitions from the heights of Table Mountain and Eagle Ridge down to the river canyons, where the Stanislaus National Forest begins its reach across the eastern slopes.