May Image of the Month: Mount St. Helens, WA

Unsurprisingly, we highlight Mount St. Helens for our May Image of the Month. May 18 is the anniversary of its violent 1980 eruption. This image was taken at sunrise during a September 2012 thermal and mineral spring geothermal sampling trip conducted at the Pumice Plain and Breach areas on the north flank of the volcano. Photo courtesy of Pete Stelling (Western Washington University).