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1987 Map of Gilmore
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1987 Map of Gilmore

USGS Topo · Published 1987

About this map

The mining settlement of Gilmore sits at the edge of the Lemhi Range, where industrial activity once dominated the slopes of the Salmon National Forest and Challis National Forest. By the late 20th century, this map records an extensive network of extractive history, marked by numerous prospects, adits, and mine shafts. Notable workings like the Brown Bull Mine, Ridgeway Mine, and Mountain Boy Mine dot the high elevations around Portland Mountain. The landscape is physically etched with the remains of former transport systems, most notably an Old Railroad Grade that winds through the foothills above Texas Creek. This juxtaposition of high-altitude wilderness, seen at Negro Peak and Mill Creek Lake, with the scarred terrain of the mining era, provides a detailed record of the region's complex economic and environmental history.

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Map Details

Date Portrayed1987
Date Published1987
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1987 Gilmore Map

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

Historical Maps of Lemhi County Through Time

534 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain