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2017 Map of Deadhorse Ridge

Name: 2017 Topographic Map of Deadhorse Ridge
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

The confluence of the Snake River and Salmon River dominates this landscape along the Oregon-Idaho border, where deep canyons and high ridges define the terrain. Within the Wallowa National Forest, the map reveals a rugged river-corridor geography characterized by named rapids such as Mountain Sheep Rapids, Beggs Creek Rapids, and Imnaha Rapids. The presence of Eureka Bar along the Snake River bank points to historical riverine activity and potential settlement sites in an otherwise steep environment.

Upland features such as Wapshilla Ridge and Deadhorse Ridge provide significant elevation, while local history is reflected in names like Cemetery Ridge and Spain Saddle. The southern portion of the map transitions into the drainage of the Imnaha River, where narrow gulches like Hilliker Gulch and Trough Gulch carve into the plateau. This 2017 survey serves as a modern record of these remote borderlands, documenting the intersection of Nez Perce, Idaho, and Wallowa counties.