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1997 Map of Swim Ridge, 2001 Print
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1997 Map of Swim Ridge

USGS Topo · Published 2001

About this map

Shasta Trinity National Forest and Six Rivers National Forest meet in this late-twentieth-century study of the California wilderness. The terrain is defined by the high crests of Swim Ridge and Horsehead Ridge, which flank the complex drainage systems of the Mad River and the South Fork Mad River. Evidence of early resource extraction persists in the landscape through the Bonanza Mine and Lucky Sunday Mine, both situated within the steep canyons of the Trinity and Humboldt county border area. The mapping highlights a specialized infrastructure of forest management, including the Yolla Bolly Mad River Trail and the Mad River Road, which provided access to remote peaks such as North Kelsey Peak and South Kelsey Peak. This region, partly protected within the Yolla Bolly-Middle Eel Wilderness, serves as a critical watershed where numerous gulches and springs, such as Happy Camp Spring and Waterspout Spring, feed the primary river systems.

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Map Details

Date Portrayed1997
Date Published2001
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.9 x 26.8 inches

Editions of this 1997 Swim Ridge Map

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

Historical Maps of Trinity County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain