North Sister

created by RockLobster
(place) by RockLobster (8.2 y) (print)   (I like it!) Mon Apr 17 2000 at 14:27:41
The oldest volcano in a volcanic range known as the Three Sisters in the Cascade Range of Oregon. North Sister is a lava cone that rests on a shield volcano. As the oldest sister, this volcano is approximately 0.3 million years old.
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