1948 Map of Columbia

About this map

Columbia and the surrounding Gold Country foothills are captured in detail during the late 1940s, a period when the area was transitioning from an active resource-extraction region to a site of historical preservation. The map highlights the Columbia Historic State Park, reflecting early efforts to protect the unique architecture of the mining boom. Hard-rock mining and quarrying operations are still prominent features of the landscape, with the Carson Hill Mine, Henning Mine, and several Marble Quarries dotting the terrain. The Stanislaus River carves a deep canyon through the center, separating Calaveras and Tuolumne counties.