A mountaineer died after he fell 3,000 feet from Alaska’s Mount McKinley, also known as Denali. Alex Chiu was ascending Mount McKiney’s West Buttress climbing route on to the Peters Glacier on June 2, which is roughly 12,000 feet above sea level.

Nicholas Vizzini, 29, of Washington state and his climbing partner, a snowboarder, triggered the avalanche high on the peak Tuesday while descending a slope.