Loading map...

2015 Map of Keystone

Name: 2015 Topographic Map of Keystone
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

Keystone serves as a central point in this landscape where the Hetch Hetchy Aqueduct cuts a diagonal path through the foothills of the Sierra Nevada. The terrain is defined by prominent elevations such as Table Mtn and Rushing Mtn, overlooking a complex network of seasonal drainages including Green Spring Run and several forks of Wildcat Creek. The intersection of La Grange Rd and Jasper Rd near the settlement highlights the area's rural transit patterns.

A notable inclusion is the Kistler Ranch Airport, situated north of the aqueduct among the foothills. The northern boundary is marked by the Stanislaus River, where it forms the line between Calaveras and Tuolumne counties. This survey captures a region where essential water infrastructure, like the aqueduct, traverses a landscape of traditional ranching and high-relief terrain like the Red Hills.