Flashback: After months of blowing off steam, the mountain erupted at 8:32am, killing 57 people, blotting out the sun across ...

Color photos shot in 1980 from the cockpit of a Cessna 150 reveal the magnitude of Mount St. Helens' ash and destruction amid volcano's eruption.

We dug into the archives for 'The Mountain Erupts,' a KING 5 documentary on the 1980 Mount St. Helens eruption.