Washington’s forgotten volcano before St. Helens
Originally aired: Wednesday, July 12, 2017
One day in March around 40 years ago, a huge peak in the Cascades suddenly showed signs of volcanic life. Steam and ash erupted from atop the cone, with a plume that was visible for miles. Scientists from universities and government agencies swung into action, moving swiftly to begin gathering data, and to eventually close off nearby recreation areas in the name of public safety.
And no, we're not talking about Mount St. Helens.