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2001 Map of Thompson Peak, 2004 Print
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2001 Map of Thompson Peak

USGS Topo · Published 2004

About this map

Petersburg Station and the riverside flat of Summerville anchor the northern reaches of this mountain landscape along the South Fork Salmon River. This 2001 revision highlights a terrain defined by historical extractive sites and early ranching footprints, where mines and prospects are scattered across steep drainage basins like Yellow Jacket Basin and Black Gulch. The boundary between Siskiyou and Trinity counties cuts through the heart of the Trinity Alps Wilderness, a protected expanse where high-altitude water bodies like Grizzly Lake and Sapphire Lake sit beneath the shadows of Thompson Peak and Caesar Peak. Evidence of local history and isolated settlement is preserved in labels for Schoolhouse Flat, Moliter Cabin, and Bobs Farm, alongside small burial sites marked simply as Cem and Grave near the river’s edge.

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Map Details

Date Portrayed2001
Date Published2004
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions21.4 x 26.5 inches

Editions of this 2001 Thompson Peak Map

Historical Maps of Summerville Through Time

341 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain