Inside the Cascades Volcano Observatory in Vancouver, Wash., SALI the robot weighs small crucibles holding sediment.SALI ...

LONGVIEW—A number of trails in the Mount St. Helens National Volcanic Monument will be closed on weekdays through 2027 now that crews are starting to update the tunnel at Spirit Lake near the ...

Thousands of logs were washed into Spirit Lake after the eruption of Mount St. Helens and have stayed there for 44 years. Courtesy of US Forest Service Meanwhile, Spirit Lake continues to settle ...

Photographer’s description: “I made this photo after hiking down to Spirit Lake one foggy afternoon ... was obliterated by the eruption of Mount St. Helens on May 18, 1980, it became a hellish ...

A panoramic view of the south rim of Mount St. Helens, looking past the lava dome north toward Spirit Lake and Mount Rainier. Dean J. Koepfler The public is still able to visit multiple recreation ...

This striking satellite photo shows the unusual shape of Spirit Lake, which was transformed into a giant anatomically inaccurate heart by the explosive eruption of Mount St. Helens in 1980.

PORTLAND, Ore. — Mount St. Helens’ Johnston Ridge Observatory will remain closed to the public until at least 2026 due to road repairs on Spirit Lake Highway, a Washington State Department of ...

Visitors can now stop in at the Mount St. Helens Science and Learning Center ... Sunday night was so big it demolished the 85-foot Spirit Lake Outlet Bridge and closed State Route 504 at milepost ...

When Mount St. Helens erupted in 1980, debris blocked the historic outflow of Spirit Lake, raising the water level 200 feet. Engineers built a tunnel in 1985 to drain the lake and to prevent a ...