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1979 Map of Thompson Peak
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1979 Map of Thompson Peak

USGS Topo · Published 1979

About this map

Summerville sits along the winding course of the Salmon River, serving as a focal point for this high-altitude wilderness on the Siskiyou and Trinity county line. The landscape is defined by the sharp elevations of the Salmon Trinity Alps, where glacial features like Grizzly Lake and Sapphire Lake rest below the granite spires of Thompson Peak and Caesar Peak. Resource extraction and early mountain settlement are evident in the presence of the Moliter Mine and numerous unnamed prospects scattered through the steep gulches.

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Map Details

Date Portrayed1979
Date Published1979
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions21.9 x 26.7 inches

Editions of this 1979 Thompson Peak Map

Historical Maps of Summerville Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain