KING 5's Rich Marriott was working for the Northwest Avalanche Center when Mount St. Helens erupted. He was part of the team that surveyed damage via helicopter.

According to the USGS, Mount St. Helens is the most active volcano in the lower 48 states and the most likely in the Cascades ...

Explore how the landscape of southwest Washington still bears the scars of the Mount St. Helens eruption 45 years later, ...

Rich Marriott: My experience with the 1980 Mount St. Helens eruption: KING 5's Rich Marriott was working for the Northwest ...

The anniversary of the eruption of Mount St Helens gives so many pause, recalling where they were that day, May 18, 1980.

Mt. St. Helens profile Before erupting in 1980, Mount St. Helens was a steep, conical volcano sometimes referred to as the Mount Fuji of America. During the 1980 eruption, the upper 1,300 feet of ...

Michael Lienau, part of the first film crew documenting the aftermath of the Mount St. Helens, said the experience was a ...

Mount St. Helens, the largest volcanic eruption in US history, was commemorated this weekend, 45 years after its eruption, ...

Sunday, the Pacific Northwest was reshaped in ways that still reverberate nearly half a century later. Why it matters: For centuries, people lived in the shadow of Mount St. Helens, but the threat of ...

57 people died in the eruption, but the disaster gave scientists a way to develop monitoring tools, improving their ability ...