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1948 Map of Mokelumne Hill

Name: 1948 Topographic Map of Mokelumne Hill
Creator: U.S. Geological Survey
Published: 1963
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1963

About this map

The Mokelumne River carves a deep boundary between Amador and Calaveras Counties, defining a landscape shaped by both Gold Rush history and mid-century hydroelectric development. By the late 1940s, the region retained many of its earlier footprints, including the (Butte City) Ruins and the Middle Bar (Site) near the Pardee Res. The upland terrain is dotted with family-named holdings such as the Lombardi Ranch and Guffra Ranch, reflecting the enduring agricultural and ranching roots of the area surrounding Mokelumne Hill.

Water management for power and irrigation is prominent, centered on the Powerhouse at Electra and the intricate network of the Upper Standard Canal and Lower Standard Canal feeding into Lake Tabeaud. This survey also documents the persistent mineral interests of the Mother Lode, marking the Le Roi Mine and Blue Jay Mine. The presence of the Ponderosa Way and the Milligan Sch illustrates the connectivity between these remote hillside settlements and the resource-rich canyons.