View from the bottom of a one-meter (three-foot) trench on Mount St...

View from the bottom of a one-meter (three-foot) trench on Mount St...

Detailed Description

View from the bottom of a one-meter (three-foot) trench on Mount St. Helens' pumice plain uncovers pyroclastic flow deposits.

Details

Image Dimensions: 900 x 675

Date Taken: