This is the modern legacy of Mount St. Helens,” said Sediment Lab Technician Erin Lysne, while showing the lab and SALI at ...

Donald Brown is the Lead Scientist for Mount St. Helens with the U.S. Forest Service, and 45 years after the eruption ... another 60 years of growth before the forest is back to normal.

The May 18, 1980, eruption of Mount ... After the first small earthquakes were detected on the Ides of March 1980, the USGS deployed a temporary network of seismographs near the St. Helens ...

Nearly 45 years after Mount St. Helens’ eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, millions of tons of sediment still pour into the Cowlitz River each year.

The consensus was that an eruption was coming, but nobody knew whether it would be days, months or years before it happened. Mount ... destruction after the north side of St. Helens explodes ...

Geologist Carolyn Driedger recounts the haunting day before that catastrophic ... public officials.” View of Mount St. Helens during minor eruption, two years after the major eruption on May ...

The Mount St. Helens Visitor Center in Castle Rock will reopen on May 31. The center just finished its first major renovation since it opened in 1986. The project began in September 2024.

For the first time since it opened in 1986, the Mount St. Helens Visitor Center has completed its first major renovation, prepared to welcome back tourists. The building closed last September for ...