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1954 Map of Three Sisters

Name: 1954 Topographic Map of Three Sisters
Creator: U.S. Geological Survey
Published: 1991
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1991

About this map

The eastern edges of the San Joaquin Valley meet the rising slopes of the Diablo Range in this mid-century topographic record. Agricultural development is evident along the valley floor, where Fairview Sch serves the local farming community near a grid of established routes including Spring Grove Road and Fallon Road. The landscape transitions abruptly into high ridges like Dunne Ridge and Chimney Ridge, characterized by a series of private ranch holdings that define the local geography.

Prominent estates such as Hawkins Ranch, Garcia Rancho, and Sparling Ranch occupy the canyons and arroyos, while water management is captured at the Hawkins Lake Spillway. High-elevation landmarks like San Joaquin Peak and the namesake Three Sisters overlook the rugged interior. The map also documents recreational and land-use markers including a Hunting Club and various water tanks, illustrating the human footprint within the complex terrain of the Ausaymas y San Felipe land grant.