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2017 Map of Ryan Peak

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

USGS Topo · Published 2017

About this map

Ryan Peak and Kent Peak dominate the high-altitude topography of the Boulder Mountains in this section of central Idaho. The landscape serves as a significant hydrological divide, with headwaters flowing into three major drainages: the N Fork Big Wood River to the south, the N Fork Big Lost River to the east, and the E Fork Salmon River to the north. These watersheds define the boundary between the Sawtooth National Forest and Challis National Forest.

Evidence of historical prospecting is preserved in names like Lost Mine Canyon and Crooked Canyon, while the high alpine environment is highlighted by N Fork Lake and the precipitous Narrow Canyon. The only significant terrestrial access route shown is W Pass Rd, which skirts the northern reaches near W Pass Cr, illustrating the isolation and specialized nature of this mountainous terrain at the border of Custer and Blaine counties.