Skier Tumbles More Than 1,000 Feet Down Mountain

A video of a skier tumbling more than 1,000 feet is going viral after it was released to promote skiing safety.

The video shows big-mountain skier Angel Collinson skiing in the Neacola Range in Alaska last spring.

When the snow beneath Collinson’s skis changed to ice, she flipped onto her back and tumbled more than 1,000 vertical feet, according to Teton Gravity Research (TGR), which released the footage

“The fall was absolutely terrifying. ... You have no idea what you are going to tumble over and there is basically nothing you can do but hang on,” Collinson told TGR. “This was a definitely a learning experience for me.”

“Maybe 99 times out of 100, you can ski through that terrain, but when it does go wrong, it’s more high-consequence,” said Collinson, who can be heard in the video saying, "I'm okay," when she finally comes to a stop.

Collinson did not sustain any major injures in the fall, according to TGR.

TGR, a Wyoming-based adventure and action sports media brand, last week hosted Safety Week 2016, which presented content on the risks and dangers of backcountry snow travel.