Ash collection from east Crater Glacier on Mount St. Helens with a ...
![Ash collection from east Crater Glacier on Mount St. Helens with a ...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/vhp_img969.jpg?itok=yd8xCzVj)
Detailed Description
Ash collection from east Crater Glacier on Mount St. Helens with a dredge attached to a helicopter cable. Ash is analyzed to help scientists understand eruption characteristics.
Sources/Usage
Public Domain.