Eruption History

The eruptive history of the Mount Baker volcanic field is virtually continuous from 1.3 million years ago to the present, and it includes at least 25 discrete eruptive vents and >100 intruded dikes.

Black Buttes, an arc-shaped ridge of craggy peaks, is the remnant of a large stratovolcano that stood in approximately the same location as Mount Baker, only higher.

Mount Baker's edifice consists mostly of lava flows (as many as 200), and scattered evidence indicates that some of its products were broken up and carried away by glaciers.