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2015 Map of South Yolla Bolly Mountains

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

USGS Topo · Published 2015

About this map

Mendocino National Forest and Trinity National Forest meet in this high-altitude landscape dominated by the South Yolla Bolly Mountains. The terrain is defined by dramatic elevation changes, rising to prominent summits like Mt Linn and the Twin Peaks. The complex drainage system of the California Coast Ranges is evident here, with the S Fork Cottonwood Cr and N Fork Elder Cr carving deep paths through the ridgelines.

Historically, the area supports specialized forest access and management, as seen in the system of service roads and designated locations such as Ides Cove and Browns Camp. Notable geological and hydrological landmarks like Square Lake, Long Lake, and Valentine Spring are scattered across the peaks. These features, along with named spurs like Trough Spring Ridge and Boswell Ridge, illustrate a landscape primarily utilized for wilderness preservation and watershed management during the early twenty-first century.