Loading map...

1947 Map of San Andreas

Name: 1947 Topographic Map of San Andreas
Creator: U.S. Geological Survey
Published: 1947
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1947

About this map

San Andreas and the Mother Lode mining country are documented here in the late 1940s, revealing an industrial landscape defined by a dense concentration of hard-rock mines. The map centers on the seat of Calaveras County, where the County Hospital and various ranches like Filippini Ranch sit among the ridges. Further south, the gold mining heritage of the region is evident through the cluster of operations surrounding Altaville and Angels, including the Black Oak Mine, Sultana Mine, and Gold Cliff Mine.

Rural life is marked by isolated landmarks such as Kentucky House and several small schoolhouses, including Willow Creek Sch and Salt Spring Valley Sch. The landscape is carved by the North Fork and South Fork of the Calaveras River, while the presence of the Cement Plant and Lime Quarry suggests the broader mineral extraction economy of the mid-century era. Smaller settlements and stations, such as Pools Station and Elkhorn Station, anchor the road network through the hills.