Seven thousand six hundred years ago, a volcanic eruption of unprecedented scale rocked Western North America.

The 1815 eruption produced 60 megatons of sulfur, and as a result, average global temperatures dropped by around 3°C (5.4°F).

After a year of explosive episodes, the summit continues inflating with fountaining possible as early as Wednesday.

5. (tie) What Moves the Dead (Sworn Soldier) by T. Kingfisher and Comfort For Community by Heather Osoy 1. Ghoul of Grays Harbor: Murder and Mayhem in the Pacific Northwest by CJ March 2. Photographs ...

A big, messy surprise greeted Yellowstone National Park early Saturday morning, just as winter officially began. At around ...

The Oso landslide reportedly was the deadliest in U.S. history. And unlike volcanic eruptions or avalanches, risks largely can be avoided. Preventing development in susceptible areas or stabilizing ...

Previously, the dam prevented 80% of sediment from the 1980 Mount St. Helens eruption from flowing past it, and into the rivers downstream of the North Fork of the Toutle ...

CASTLE ROCK, Wash. — City and county leaders across Cowlitz County are raising alarms about escalating flood risks along the Cowlitz River, warning that sediment from Mount St. Helens continues to ...

City and county leaders in Cowlitz County say sediment from the Mount St. Helens eruption on May 18, 1980 is causing flood concerns.

Sediment in the Cowlitz River has grown worse in recent years due to a delayed raise of the 36-year-old dam that captures the sediment back on the North Fork Toutle River.

Ohio State closed out a six-game homestand to open the season with a methodical, 113-60 blowout against Mount St. Mary's. The Buckeyes (6-0) took control with a 21-3 run to close the first half and ...