GEOLOGY

Detailed explanation-1: -Mount St. Helens, located in Washington State, is the most active volcano in the Cascade Range, and it is the most likely of the contiguous U.S. volcanoes to erupt in the future.

Detailed explanation-2: -Forty years ago, after two months of earthquakes and small explosions, Mount St. Helens cataclysmically erupted. A high-speed blast leveled millions of trees and ripped soil from bedrock. The eruption fed a towering plume of ash for more than nine hours, and winds carried the ash hundreds of miles away.

Detailed explanation-3: -Native American names for Mount St. Helens were “Loowit” or “Louwala-Clough", which meant “smoking mountain". A Gifford Pinchot National Forest “Mount St.

Detailed explanation-4: -Kelso, WA. Longview, WA. Saint Helens, OR. Salmon Creek, WA. Minnehaha, WA. Washougal, WA. Camas, WA. Vancouver, WA. More items