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1991 Map of Copper Basin Knob
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1991 Map of Copper Basin Knob

USGS Topo · Published 1991

About this map

Challis National Forest dominates this high-altitude landscape, where the Big Lost River begins its course through a complex network of glacial and volcanic terrain. In the heart of the Copper Basin Flat, mining activity is evident at the Copper Basin Mine and numerous unnamed shafts and borrow pits, signaling the area's mineral importance in Custer County. The presence of the Copper Basin F S Station and the Copper Basin Landing Strip underscores the logistical role this basin played for forest management and remote access.

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Map Details

Date Portrayed1991
Date Published1991
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.7 inches

Editions of this 1991 Copper Basin Knob 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