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1920 Map of Seven Devils Mining District

Name: 1920 Topographic Map of Seven Devils Mining District
Creator: U.S. Geological Survey
Published: 1920
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1920

About this map

The Seven Devils Mountains dominate this 1920 survey of a high-elevation Idaho mining district during a period of active mountain settlement and extraction. Mining operations are anchored by the small communities of Cuprum, Landore, and Helena, with the Landore School providing a social center for families in this remote terrain. The district's economy and logistics are reflected in the numerous isolated dwellings such as Gearden Cabin, Heady Cabin, and Carnahan Cabin, alongside working livestock operations at Hendricks Ranch and Huntley Ranch.

The deep gorge of the Snake River forms the western boundary, where locations like Eagle Bar and Vermilion Bar mark points along the water. Federal management is evident through the division between the Wallowa National Forest and Weiser National Forest, supported by infrastructure like the Iron Springs Ranger Sta and Smith Mtn Ranger Sta. The landscape is a network of ridges and basins, including Shaley Ridge and the high Six Lake Basin, with Black Lake and Lake Winifred serving as prominent water bodies.