Decades after Mount St. Helens' eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, sediment ...

Recent increased seismic activity at Mt. Adams has brought state, tribal, and federal leaders together to reassess their eruption plans.

One of California's latest national monuments is an enormous, pristine section of mountains, lakes, and lava flows in the ...

Much like in 1980, if we started seeing more frantic rumbling, then the media coverage would become intense, and it could ...

At Mount St. Helens, volcano monitoring and trail maintenance efforts are set to degrade without help from federal agencies.

MOUNT ST. HELENS (KPTV) - A snowmobiler with an injured leg was rescued the afternoon of Monday Feb. 17 after an avalanche on Mount St. Helens, according to authorities. Around 2 p.m., three ...

PORTLAND, Ore. (KOIN) — After an avalanche on Mt. St. Helens left one snowmobiler stuck and another injured, a fellow snowmobiler managed to aid them before calling in a rescue group on Monday.

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 down into the Cowlitz River ...

The Gifford Pinchot National Forest continues to hold public meetings while working on the draft environmental impact statement for a long-term Spirit Lake outflow solution near Mount St. Helens. The ...

When Mount St. Helens erupted in 1980, it blew away the top 1,300 feet (400 m) of the mountain — about the height of the Empire State Building. ts can use their trunk like a snorkel in the water.

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.

MOUNT ST. HELENS, Wash. (KATU) — Snowmobilers, including one with a serious leg injury, were rescued following an avalanche on Mount St. Helens on Feb. 17. The incident occurred when three ...