Tilt-leg spider, a rapid-response instrument made to rest on top of...

(Credit: Pallister, John. Public domain.)

Detailed Description

Tilt-leg spider, a rapid-response instrument made to rest on top of the north-face of the 2005 Mount St. Helens lava dome. Includes GPS and seismometer.

Details

Image Dimensions: 3008 x 2000

Date Taken: Friday, January 14, 2005