American Alpine Jounrna and Accidents in North American Climbing

Fall into Crevasse, Skiing Unroped — Alaska, Mount McKinley

  • Accident Reports
  • Accident Year:
  • Publication Year: 1985


Alaska, Mount McKinley

Peter Nadler (36), an experienced professional guide, was the leader of a seventeen member Swiss expedition on the West Buttress Route of Mount McKinley. On June 2, 1984, the group was flown into base camp on the southeast fork of the Kahiltna Glacier by Cliff Hudson. On June 5, two members of the group decided not to continue and returned to Talkeetna. The expedition members camped that night at 3340 meters.

On the morning of June 6, the weather had deteriorated. The temperture dropped, it was snowing, and visibility was poor. Eight climbers, led by deputy leader Diego Wellig (23) ascended to establish the next higher camp at 3600 meters. They were all on skis and traveling unroped, with the intention of backhauling supplies from the cache at 2800 meters.

The climbers started skiing down at 0930 through 20 centimeters of new snow. They had been gone from the camp approximately 15 minutes, with Nadler in front pulling a sled. They could not stay directly on the trail because of the slope, but they stayed as close as possible. Manfred Struhhoffer (54) and Rudolf Roesel (48) were following Nadler and saw him fall into the creavasse. Nadler had almost skied to a stop, and it appeared that the edge of the crevasse had crumbled, causing him to fall. The crevasse was open, but difficult to see until the climbers got close because of flat lighting and because there was a slight rise in the foreground. The crevasse was about two meters wide at the top, increasing in width under an overhanging lip.

Efforts to make voice contact with Nadler were unsuccessful. As the climbers had no ropes for a rescue effort, three members of the group started up to get assistance. On the way they met a group of Austrians, who immediately descended to the accident site to provide assistance. One of the Swiss climbers continued up and contacted three doctors from another Swiss expedition, and Wellig. All descended to provide assistance.

When the Austrians arrived, they belayed one of their members, Manfred Egger, into the crevasse. He descended approximatley 20 meters, but did not have enough rope to go further. He reported that the crevasse was very dangerous because of the apparently unstable overhanging lip. As Egger ascended, Wellig arrived at the scene. By joining the two ropes together, Wellig descended 50 meters to a point where he located Nadler’s sled. The crevasse was very narrow at this point. He cleared snow away from the sled and tried to loosen it, but the sled was jammed.

Wellig returned to the surface and dispatched two groups of climbers (one up and one down) to find someone with a radio. One group contacted a Tacoma, Washington, expedition, who managed to contact mountaineering ranger Scott Gill at 4300 meters. Because of bad weather it was not possible to get a helicopter to the accident scene. The Tacoma climbers then went to the scene to provide communciations. As there was considerable manpower available for the rescue effort, Gill remained at 4300 meters to provide a radio/telephone link in case the weather improved and outside efforts were needed.

At 1538 Wellig and Egger again descended into the crevasse. They dug through about one meter of compacted snow undereneath the sled and found Nadler’s rucksack. They tried to move the pack, but it too was jammed. They contined to dig and found that Nadler was still attached to the rucksack. They determined that Nadler was dead. They unsuccessfully tried to free his body, but the crack was too narrow and the snow was very hard. They attached a rope to the rucksack and ascended back to the surface. The rescuers tried to recover the body by pulling up the rucksack, but the straps on the pack failed.

No further efforts have been made to recover Nadler’s body because of the hazardous conditions in the crevasse. (Source: Tom Griffiths, Chief Ranger, Denali National Park)


There is an increasing tendency for climbers to travel on the Kahiltna Glacier unroped, particularly when following a packed trail. There will continue to be serious crevasse falls as long as this practice continues. The poor visibility at the time of the accident made it difficult to differentiate crevasses, especially skiing downhill. Also, the party might have been able to begin rescue efforts sooner if they had not left all their ropes in camp.

This type of accident emphasizes the need for parties in remote areas to be as self- sufficient as possible. There is not a rescue team or helicopter immediately available, and the weather often precludes air access for several days at a time. (Source: Tom Griffiths, Chief Ranger, Denali National Park)

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