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1951 Map of Mt. George

Name: 1951 Topographic Map of Mt. George
Creator: U.S. Geological Survey
Published: 1952
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1952

About this map

The rugged highlands of the Chimiles and Twin Sisters ranges dominate this 1951 topographic survey of the hills east of Napa. The landscape is defined by a series of steep canyons and water catchments, including Lake Madigan, Lake Frey, and Lake Marie, which serve the agricultural and domestic needs of the surrounding valleys. Civil engineering is evident in the water control structures of Suisun Reservoir and the Green Valley Falls, while the transition toward recreation and estate development is marked by the presence of the Napa Valley Country Club and the Green Valley Golf Club.

Rural community life centers on small landmarks like Mt George Union Sch and the Chimiles Farm Center. This era shows a network of winding mountain passages such as Monticello Road and Wooden Valley Road, connecting the secluded Wooden Valley to the growing census areas of Tolenas and the Napa outskirts. The map captures a moment when the upland water supply was central to the region's infrastructure.