Afton, Wy – An avalanche expert says the slide that killed three men in Lincoln County on Saturday was a thirty- to fifty-year event. Bob Comey is an Avalanche forecaster for Bridger-Teton National Forest. "There were a lot of trees in the debris, of various size. There were a lot of small trees, some medium size, and some larger trees and when you get up into these elevations, trees take a long time to grow." The three men who died were experienced snowmobilers who knew the area well. Comey says it's likely that the men had stopped their snowmobiles in the valley below when the avalanche rushed toward them. He says it's possible they were not looking in the direction of the slide and didn't have time to react.