Retired engineers revisit Mount St. Helens, reflecting on recovery efforts post-eruption for its 45th anniversary.

A group of retired US Army Corps of Engineers members reunited at the Sediment Retention Structure just three days after the 45th anniversary of the Mount St. Helens eruption.

On May 18, 1980, the United States experienced the deadliest and most destructive volcanic eruption in its history.

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 ...

River valleys were smothered and the path of the Toutle River was altered. To this day, it remains full of sediment. The area was so completely devastated that when viewing it, then-President ...