USGS scientist measures Earth's gravity field at a benchmark on the...

(Credit: Dzurisin, Dan. Public domain.)

Detailed Description

USGS scientist measures Earth's gravity field at a benchmark on the west flank of Mount St. Helens. Sediment-filled channel of South Fork Toutle River is visible in the distance. The drainage was heavily impacted by mudflows spawned by the May 18, 1980 eruption of Mount St. Helens.

Details

Image Dimensions: 4032 x 3024

Date Taken: Monday, August 22, 2016