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UPDATE: Snowmobiler killed in avalanche near Galena Summit
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UPDATE: Snowmobiler killed in avalanche near Galena Summit

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KETCHUM — The Sawtooth Avalanche Center said a snowmobiler was killed Friday in an avalanche in the Smiley Creek drainage, about 8 miles southwest of the Galena Summit.

The SAC’s Instagram page reported one member of a large group was “highmarking” — riding up a steep slope from the bottom — on a south-facing slope near 9,000 feet in elevation.

The upper portion of the slope was wind-loaded. The rider triggered a very large avalanche approximately 500 feet wide, 3-4 feet thick and ran over 1,000 vertical feet. The rider was caught and carried into trees near the bottom of the slide path.

Smiley Creek avalanche

The crown of the lower right side of an avalanche Friday in the Smiley Creek drainage near the Galena Summit.

He deployed his avalanche airbag, was not buried but sustained severe injuries. Members of the rider’s party were unable to revive the rider at the accident site.

“We extend our heartfelt condolences to the victim’s friends and family,” the Sawtooth Avalanche Center’s Facebook page said.

USFS Sawtooth Avalanche Center staff visited the site and will release additional information and an incident report in the coming days.

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“Thursday night’s new snow and wind likely built a round of small, fresh drifts and sensitive cornices,” The agency’s Friday avalanche forecast said. “These hazards may be dangerous on their own, but can also act as triggers for larger avalanches that fail on weak snow buried 2-3’ deep. You can reduce your risk by steering clear of steep slopes with drifts or stiff snow near the surface.”

“Our area is known for its weak layers,” avalanche specialist Chris Lundy said. “We haven’t seen this weak of a layer in years, one as persistent as this one is about every 10 years, and it can be problematic for the entire state, not just our area.”

Smiley Creek avalanche

Looking up the slide path of an avalanche Friday in the Smiley Creek drainage near the Galena Summit.

The Sawtooth Avalanche Center says that since winter 2003-04, eight snowmobilers died in avalanches in Idaho — a more than two-to-one ratio compared to all other user groups.

“The Galena Summit area is the most popular for skiers and the Baker Creek drainage is popular with snowmobilers,” Lundy said.

The four zones in and around the Wood River Valley all remain in either the moderate- or considerable-rating ranges.

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