East Dome erupted during Sugar Bowl time (C.E. 850-900) east flank ...
Detailed Description
East Dome erupted during Sugar Bowl time (C.E. 850-900) east flank view of Mount St. Helens. Kalama age (erupted about 1535) andesite flows surround dome.
Related
Holocene Activity Prior to May 18, 1980 Eruption
Summary of Holocene activity prior to the May 18, 1980 eruption.
Related
Holocene Activity Prior to May 18, 1980 Eruption
Summary of Holocene activity prior to the May 18, 1980 eruption.