Doug Abromeit, who helped start the U.S. Forest Service National Avalanche Center, died Sunday while mountain biking near his home in Idaho, the Associated Press reported.


Abromeit of Hailey was 65.

Two friends riding with Abromeit told the AP that he fell from his bike during an afternoon ride and that attempts to revive him were unsuccessful. Blaine County Coroner Russ Mikel says Abromeit, a hardy outdoorsman who hiked high mountain peaks in mid-winter during his Forest Service career, appears to have died of natural causes.