Pro Skier Survives Spectacular 1,600-Foot Fall

Pro skier Ian McIntosh was being filmed in Alaska for a movie when he took an unbelievable mountainside tumble.

"Oh! No! Ughhhhh! Mmmmhhh! Ughhhhhh! Ahhhhhhh!"

In case you were wondering, that's the muffled, terrifying sound a skier makes when tumbling 1,600 feet down the side of a steep, snowy mountain in under a minute.

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Pro skier Ian McIntosh was in Alaska's Neacola range being filmed by Teton Gravity Research for their ski and snowboard movie "Paradise Waits." McIntosh, Mac for short, is originally from British Columbia and grew up in a family of skiers, according to his profile.

The movie, which is out now, follows a team of intrepid snowboarders and skiers awaiting winter's arrival, and the tricks they pull off when the snow finally hits. In case you want to live vicariously through them, here's the trailer.

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McIntosh thought he'd studied the line thoroughly, but then fell into a hidden trench on one of his first turns, Teton Gravity Research explained in a blog post. He tried to regain his footing and lost a ski. "I pulled my airbag to help prevent against any possible trauma injuries as I tumbled to the bottom," McIntosh said in the post. Watch the crazy video below:

His fall was not only caught on camera, but McIntosh was wearing a mic that somehow stayed on for the length of his spectacular fall. The 24-year-old was able to muscle his way out of the snow at the bottom and walk away, a spokesman told NBC News.

Teton Gravity Research co-founder Todd Jones called it "the most terrifying crash I've ever seen," in the blog post. It's certainly one of the scariest I've ever heard. Lying in the snow, gasping for air, McIntosh looks up at the mountain tops and says, "I'm OK. I'm OK." His airbag should go in a frame.

via Outside Magazine

Tongass National Forest in Alaska is the United States' largest national forest. It holds within it the Juneau ice fields and their crown gem, Mendenhall Glacier. A new episode of "

This Happened Here

" on Discovery Digital's new

Seeker Network

follows an expedition across the inhospitable terrain.

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Expedition guide Kent Rodell found himself in this dangerous territory as part of a project that brings students from different fields of science together for research studies.

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Rodell and his team traveled 200 miles over crevasses and alongside glaciers in this untouched region of Juneau.

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"We use cross country skis primarily," Rodell said, "because large skis displace our weight and cover crevasses."

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"Measuring the accumulation and loss of snow that falls on the glaciers, dictating over the course of time the general status or health of these glaciers and the entire glacial system.”

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"The wildlife encounters, the glaciers, the fjord ... the color of the water, there is nothing else like it.”

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