MOUNT ST. HELENS, Wash. (KATU ... free-falling 20 to 30 feet into a 100-foot deep canyon. The first rider's impact triggered an avalanche that propagated over 100 yards across the gully.

Three men are recovering after triggering, then surviving an avalanche during a snowmobiling trip on Mount St. Helens ... a snow cliff and into a 100-foot canyon known as Shoestring Gully ...

A snowmobiler was caught in an avalanche on Mount Saint Helens, and another rider was injured on the mountain, rescuers said. Gantavya Bhatt via Unsplash A snowmobiler plunged into a deep canyon ...

An curved arrow pointing right. Mount St. Helens has recently been swarming with geological activity, which could mean the giant American volcano is gearing up for its next big eruption.

MOUNT ST. HELENS (KPTV) - A snowmobiler with an injured ... free-falling 20-30 feet into a 100′ deep canyon, according tot the sheriff’s office. The first rider’s impact triggered an ...

A snowmobiler was caught in an avalanche on Mount Saint Helens, and another rider was injured on the mountain, rescuers said.

Snowmobilers, including one with a serious leg injury, were rescued following an avalanche on Mount St. Helens on Feb. 17 ... to 30 feet into a 100-foot deep canyon. The first rider's impact ...