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2020 Map of South Sister

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

USGS Topo · Published 2020

About this map

South Sister dominates this high-altitude landscape along the border of the Willamette National Forest and Deschutes National Forest. The 2020 terrain is defined by extreme glacial and volcanic features, including the Skinner Glacier, Lewis Glacier, and the high-elevation Teardrop Pool. These frozen features sit alongside evidence of relatively recent volcanic activity, such as the expansive Rock Mesa and the distinctive Leconte Crater.

Transit through this wilderness is largely limited to the Pacific Crest National Scenic Trail and the S Sister Climber route, which provides access to the summit. To the west, the drainage of Separation Cr creates alpine environments like Separation Creek Meadow and Linton Meadows. The map captures a high Cascades environment where primitive paths connect scattered water bodies like Carver Lake and Nash Lake across the Frazier Upland.