Volcano Live

Oregon, USA

44.17 N, 121.77 W
summit elevation 3074 m
Complex volcano

North Sister Volcano is part of the Three Sisters Group and is located in central Oregon Cascades. The central plug of the volcano is eroded by glacial action.

Further Reading
Schmidt, M.E. and Grunder, A.L., 2009. The evolution of North Sister: A volcano shaped by extension and ice in the central Oregon Cascade Arc. Geological Society of America Bulletin, 121(5-6), pp.643-662.