The British Columbia coroner says an Alberta woman fell to her death while snowboarding in an out-of-bounds area near the Fernie Alpine Resort.

The coroner says 20-year-old Alexa Hugh of De Winton, Alta., was with a friend last Sunday when they entered a permanently closed area outside of the resort in B.C.'s East Kootenay region.

Hugh fell more than 100 metres down a steep slope.

The woman was taken to hospital, but couldn't be resuscitated.

Both the coroners' service and the RCMP are investigating the death.