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

Nearly 45 years after Mount St. Helens' eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, ...

Mountain runoff carries ashen remains of ... where it dumps into the Columbia River Mount St. Helens, the once-serene, cone-shaped peak that dominated the skyline northeast of Clark County and ...

The sediment retention dam in Toutle has become less and less effective as it fills, switching from catching about 80% of passing sediment to allowing 80% to pass, according to ...

Recent increased seismic activity at Mt. Adams has reportedly brought the ... event of an eruption at either Mount Adams or Mount St. Helens. "We don’t really know when it’s going to erupt ...

YACOLT, Wash. — Three men are recovering after triggering, then surviving an avalanche during a snowmobiling trip on Mount St. Helens, Feb. 17. Members of the all-volunteer Volcano Rescue Team ...

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

MOUNT ST. HELENS, Wash. (KATU ... transporting him via a snowmobile sled to Marble Mountain Sno-Park, where North Country EMS was waiting to take him to the hospital. According to the U.S ...

MOUNT ST. HELENS (KPTV) - A snowmobiler with an injured ... gully floor and transported him via a snowmobile sled to Marble Mountain Sno-Park, where North Country EMS was waiting to take him ...