EPIC - Geologic Features Collection: Mount St. Helens Eruptions Set I / 29.EP_0121_DE_HE_29
Images & website content: © EPIC. All rights reserved.
Mudflow levee and valley fill in the Toutle River valley. Trees blown down by the May 18, 1980 explosion of Mt. St. Helens. (D.J. Easterbrook)
