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2018 Map of Barkley Mountain

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

USGS Topo · Published 2018

About this map

Lassen National Forest terrain dominates this survey of the Sierra Nevada foothills, where steep canyon descents lead to the drainages of Mill Creek and Deer Creek. The landscape is defined by its dramatic geologic features, including the prominent volcanic outcropping at Black Rock and the sharp elevation changes found at The Narrows and Mill Creek Rim.

Historic transport routes through these mountains are well represented, tracing both the modern Ponderosa Way and the path of the Lassen Trl. These corridors historically provided access for early migration and later forest management. Water sources like Obe Fields Spring and Cedar Spring are critical markers in this arid, high-elevation environment, while peaks such as Barkley Mtn and Flatiron Mtn serve as significant landmarks for those navigating the backcountry. The map also identifies the localized clearing at Four Lantern Flat, providing a detailed look at the region’s topography before modern developments.