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1989 Map of Lemhi

Name: 1989 Topographic Map of Lemhi
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

The settlement of Lemhi serves as a focal point in this high-altitude landscape of eastern Idaho, where the Lemhi River valley cuts through the surrounding peaks of the Salmon National Forest. This 1980s-era survey documents a region defined by its water and high-country topography, showing the numerous drainages that feed the river, including Yearian Creek, Peterson Creek, and Mill Creek.

Evidence of resource extraction and territorial history is etched into the terrain, most notably by the Old Indian Treaty Boundary that traverses the northern sections. Industrial activity is indicated by several Prospects and Mines located along the ridges, such as Prospect Ridge, while the rugged southern reaches are marked by deep incisions like Swanson Gulch and Berg Green Gulch. Local recreation and infrastructure are noted at the Campground (Well) and various Gravel Pits found throughout the river valley.