Residents of the Pacific Northwest often cast a wary eye toward Mount St. Helens, but airborne ash this week isn’t a sign of a new eruption. That’s according to the U.S. Geological Survey, which ...

Mount St. Helens looked like it might be erupting again. Commercial pilots flying in the area Tuesday reported clouds of fine volcanic ash rising into the air above the collapsed dome of the Cascades’ ...

MT. ST. HELENS - Volcanic rock has flowed to thesurface of Mount St. Helens' crater, creating a new lava dome afterweeks of seismic activity, a geologist said Tuesday. Scientists had known for days ...

VANCOUVER, WASH. - If lava continues to pile up inside the blasted crater of Mount St. Helens at the current rate, the volcano could rebuild its summit in about 10 years. Geologists say it's unlikely ...

What is that coming out of Mount St. Helens? Is it ash? The National Weather Service (NWS) in Portland assured everyone that although ash is circulating, the mountain is not erupting. Strong winds ...

In the shadow of Mount St. Helens’ summit, 20 girls spent a week studying pumice, ash and lava at a GeoGirls camp. The famous Washington volcano served as a base camp for middle and high school girls ...

MOUNT ST. HELENS -- The media crush is thinning, the hordes of tourists are trailing off, and the mountain appears to have settled in for a long, restless bout of growing pains. And although lava ...

Growth of the new lava dome inside the crater of Mount St. Helens has gradually slowed and become less steady since it began in early October, scientists from the Cascade Volcano Observatory said ...

The sharp, “toxic”-seeming odor that residents throughout southwest Washington and into Oregon smelled on September 22-23 remains a mystery. But the process of elimination continues. Large industries ...