PORTLAND, Ore. (AP) — Oregon State University scientists may have the answer to why Mount St. Helens is out of line with other major volcanoes on the Cascade Range. University geophysicist Adam ...

After 35-plus years getting to know Mount St. Helens, here is my list of must-see places at Mount St. Helens National Volcanic Monument. Drive times are one-way from Portland (without stops).

Mount St. Helens is several miles west of where it might be expected to be when looking at the Ring-Of-Fire. Oregon State University. For years, scientists have wondered why Mount St. Helens is ...

Aerial photos of Mount St. Helens before and after its May 18, 1980, ... other than the 57 people who died," said Baker, who lives in West Salem, Ore., with his wife, Susan.

The eruption of Mount St. Helens was one of the most impactful in history. But there are people who have lived alongside the volcano for millennia.

Color photos shot in 1980 from the cockpit of a Cessna 150 reveal the magnitude of Mount St. Helens' ash and destruction amid volcano's eruption. ... who lives in West Salem with his wife Susan.

In this May 18, 1980, file photo, Mount St. Helens sends a plume of ash, smoke and debris skyward as it erupts. On that day, the Mount St. Helens volcano in Washington state exploded, leaving 57 ...

Mt. St. Helens and Yellowstone are two of the largest and most famous volcanoes in the United States. Learn how they compare in this fascinating video!

Highway 504, which provides access to Mount St. Helens and the Gifford Pinchot National Forest from the west in Skamania County, remains closed at milepost 43 after a landslide Sunday night.

USGS says the quake was a 3.0 magnitude and was centered to the west of Mt. St. Helens. “This earthquake is separate from the volcano seismicity that we sometimes see,” says Professor Harold ...