This is the modern legacy of Mount St. Helens,” said Sediment Lab Technician Erin Lysne, while showing the lab and SALI at work. “The lab originally got started to help document all of the sediment ...

“Johnston Ridge Observatory was not on a map in this building, and it’s 2025,” says Alysa Adams, parks interpretive specialist for the Mount St. Helens Visitor Center.

In 1980, Mount St. Helens erupted, ... Now, she said, hazard maps are much more accurate and take into account a range of an eruption's possible outcomes.

Mount St. Helens is famous for its massive eruption on May 18, 1980, which killed 57 people, blasted away part of the mountain, ... and a three-dimensional relief map of the mountain.

Forty-five years ago on May 18, 1980, Mount St. Helens in the state of Washington violently erupted. Here’s a look at volcanoes, then and now.

The Mount St. Helens visitor center is reopening its doors with the first major renovations since it opened in 1986. Starting on Saturday, the center will be open daily from 9 a.m. to 5 p.m.

MOUNT ST. HELENS, Wash. – The Mount St. Helens Visitor Center is now open, showcasing updated exhibits and a new theater. ... and a three-dimensional relief map of Mount St. Helens. ...

“Johnston Ridge Observatory was not on a map in this building, and it’s 2025,” says Alysa Adams, parks interpretive specialist for the Mount St. Helens Visitor Center.

The Mount St. Helens visitor center is reopening its doors with the first major renovations since it opened in 1986. Starting May 31, the center will be open daily from 9 a.m. to 5 p.m.

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 the summit was removed ...