EPIC - Geologic Features Collection: Mount St. Helens Eruptions Set I / 29.EP_0121_DE_HE_29
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29.EP_0121_DE_HE_29

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)