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1962 Map of Valley Springs

Name: 1962 Topographic Map of Valley Springs
Creator: U.S. Geological Survey
Published: 1970
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1970

About this map

The Mokelumne River and Calaveras River basins undergo significant structural change in this early 1960s survey, marked by blue hatching that indicates areas soon to be submerged by the New Hogan Reservoir and Camanche Reservoir. The landscape preserves a transition from ranching and mining to large-scale water management, with numerous tailing piles and mineral operations like the Penn Mine and Pluto Mine dotting the hills near Valley Springs.

Evidence of the region's agricultural and transit roots is found in family-named holdings such as the Ospital Ranch and Stone Corral Ranch, alongside the Southern Pacific Railroad line passing through Burson (Helisma Sta). The map details small settlements like Jenny Lind and Milton, capturing the historic layout of the Mokelumne River's banks at Lancha Plana before the expansion of modern flood control and storage projects.