The incident highlights the extreme danger of deep snow days, as tree well accidents resulting in death occur at a rate of about four to five times per year.

A Minnesota man died after a snowboarding incident near Silverton on March 16. Ronald Smith, 54, of St. Paul, was found ...

If you're buried in a tree well, and have a clear airway, blowing a whistle could help your friends or ski patrol find you.

Investigators revealed that Shelkey was found unresponsive, buried headfirst in a tree well. Third parties at the scene worked for approximately 15 to 20 minutes to free him before beginning CPR.