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2020 Map of Yellow Peak

Name: 2020 Topographic Map of Yellow Peak
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

Patterson sits at the base of the Lemhi Range on this modern survey, where the E Fork Patterson Cr emerges from the high peaks. The area is defined by the intersection of the Salmon National Forest and Challis National Forest, creating a landscape of extreme vertical relief. High-altitude water bodies like Everson Lake, Dairy Lake, and Devils Lake are pocketed among the ridges, feeding a complex drainage system that includes Big Eightmile Cr and the Lake Fork.

Several prominent summits anchor the topography, including Yellow Peak, Junction Peak, and Gunsight Peak. The drainage patterns show a distinct division between the northern reaches, such as Devils Canyon, and the southern basins like Devils Basin. This map illustrates the transition from the valley settlement at Patterson into the high wilderness where Big Timber Creek and its various forks originate.