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2020 Map of North Sister

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

USGS Topo · Published 2020

About this map

North Sister and Mid Sister dominate this high-elevation segment of the Cascade Range along the border of Lane and Deschutes counties. The landscape is a complex of volcanic activity and active glaciation, featuring the Ahalapam Cinder Field, the sharp rise of Collier Cone, and the distinctive Obsidian Cliffs. This area serves as a critical hydrological source, with a dense network of glaciers including the Linn, Villard, Thayer, and Renfrew feeding into high-country waters like Chambers Lakes and Linton Creek.

Human presence is defined by significant passage through the peaks. The Pacific Crest National Scenic Trail winds through the volcanic terrain, passing notable landmarks like Opie Dilldock Pass and Sawyer Bar. To the northwest, the map records Craig Grave near Craig Lake, a site of local historical importance. The survey captures the intersection of the Willamette National Forest and Deschutes National Forest, highlighting a transition from the alpine Lane Plateau to the lush Linton Meadows.