1948 Map of Columbia

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.