Lahar
![Lahars](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/img529_400w_267h.jpg?itok=3-d6m9F1)
Detailed Description
Lahars resulting from the May 18, 1980, eruption of Mount St. Helens left a mudline on riverside trees. A scientist (middle right) stands on the bank of the Muddy River (southeast of the volcano).
Sources/Usage
Public Domain.