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snowboarder rescue

Ian Steger was buried in a tree well when Francis Zuber happened to catch a glimpse of his snowboard.

No matter how long you've skied or snowboarded or how much of an expert you are, there's one nemesis on the mountain that poses an underappreciated threat—the tree well.

People may think the main danger of skiing through trees is the risk of running into one. But falling into a tree well is a less obvious, but still potentially deadly risk due to the possibility of snow immersion suffocation (SIS). Essentially, the area around the base of a tree creates snow conditions that are quite different than those out in the open. Air pockets in the snow combined with water vapor rising from the tree base turns the snow into a quicksand-like texture that is nearly impossible to escape from—the more you struggle, the deeper in you fall. Skiers and snowboarders die every year from SIS due to falling into tree wells and not being found in time.

That could easily have been snowboarder Ian Steger's fate in March 2023 if not for the eagle eye and quick thinking of backcountry skier Francis Zuber.

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