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2018 Map of Alta Sierra

Name: 2018 Topographic Map of Alta Sierra
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

Keyesville anchors the southeastern corner of this study, positioned near the historic mining districts of Kern County. The landscape is dominated by the high elevations of the Sequoia National Forest, where the Greenhorn Mountains rise to prominent landmarks such as Greenhorn Summit and Shirley Peak. This 2018 survey reveals a terrain defined by complex drainages and high-altitude plateaus, including the recreation-focused Shirley Meadows and the open expanse of Evans Flat.

A network of mountain roads like Alta Sierra Dr and Old State Rd provide access to diverse geological features, from the depths of French Gulch and Black Gulch to the heights of Black Mtn. Water sources are abundant across the slopes, with Ranger Spring feeding into a system of creeks including Cedar Cr and Alder Cr. The inclusion of the Keyesville Classic route reflects the modern recreational use of this formerly industrial mining landscape.