Skier Killed in Avalanche in Jackson Hole, WY Backcountry Today A backcountry skier was killed by an avalanche in the Jackson Hole, WY backcountry today, according to Jackson Hole Mountain Resort. He/she was skiing Ralph’s Slide in the Rock Springs backcountry area just south of the boundary of the Jackson Hole ski resort. “The avalanche was skier triggered and reported to be a minimum of two feet deep at the […] Avalanche AvyBrains | February 17, 2018 1 Comment