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1981 Map of South Yolla Bolly

Name: 1981 Topographic Map of South Yolla Bolly
Creator: U.S. Geological Survey
Published: 1982
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1982

About this map

The Yolla Bolly - Middle Eel Wilderness occupies the heart of this high-elevation terrain where the headwaters of several major California watersheds begin. The map follows the rugged crest of the Coast Range, tracing the Trinity Co Tehama Co boundary as it winds past the prominent summit of South Yolla Bolly and across Slides Ridge. This is a landscape of remote camps and high glades, featuring backcountry outposts like Lazyman Camp, Cedar Basin Camp, and Syd Cabin Glade.

Drainage systems radiate from the central peaks, including the westward-flowing Middle Fork Eel River and the eastern-running Thomes Creek. Evidence of early cattle or mountain activity appears in labels like Johnson Hdqrs and Pole Corral Ridge. Small alpine features such as Minnie Lake and Long Lake are tucked into the drainages of the Mendocino National Forest, providing a detailed look at the hydrology of the North Coast Ranges in the early 1980s.