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2022 Map of North Yolla Bolly Mountains, 2022 Print
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2022 Map of North Yolla Bolly Mountains

USGS Topo · Published 2022

About this map

The North Yolla Bolly Mountains dominate this high-elevation landscape along the border of Trinity and Tehama counties. The area is characterized by a dense network of specialized trails, including the Humboldt Trl, Black Rock Lake Trl, and Chicago Camp Trl, which connect various remote drainage basins and mountain passes. Within the Trinity National Forest, the terrain drops away from prominent peaks into features like Beegum Basin and Cedar Basin, while water sources such as Clarence Spring and North Yolla Bolly Spring provided critical stops for early travelers and forest rangers. To the south, the map transitions into the Mendocino National Forest, where steep geographic landmarks like Devils Hole Ridge and Opium Glade Ridge defined the limits of high-country accessibility in the early 21st century.

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Map Details

Date Portrayed2022
Date Published2022
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions24 x 29 inches

Editions of this 2022 North Yolla Bolly Mountains Map

This is the sole edition of this map. No revisions or reprints were ever made.

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain