The
Bottleneck
Eighteen reached the top. Eleven never came down. Never had a disaster on the mountain been so documented — and never was the truth so contested.
For sixty-nine years the Bottleneck had been the couloir Fritz Wiessner refused. On July 19, 1939, eight hundred feet from the summit, he judged the ice hanging over it too dangerous and took the rock instead. On the night of August 1, 2008, the thing he had feared finally came down — and it cut the ropes of the climbers still above it.
This page is the story of that night, told the way 2008 told it: in timestamps. The 1939 page is sealed archive paper you tap open. This one is a tracking dashboard — the dots move while you watch, and the radio log scrolls.
The Traffic Jam
Ten teams, one window. When the sky finally opened at the end of July, everyone went at once.
K2's climbing season runs June to August, and in 2008 the mountain refused most of it. Storm after storm rolled in off Central Asia. By the end of July, ten expeditions were stacked at the foot of the mountain — some had waited nearly two months — watching the same forecast, hoping for the same handful of clear days.
When the window opened, everyone went at once. On July 31, climbers from America, France, Norway, Serbia, and South Korea — with their Nepali Sherpas — and the Dutch-led international Norit team converged on Camp IV, at about 7,900 metres: the last staging post below the summit. With them came the Pakistani high-altitude porters, the HAPs, who would do much of the most dangerous work and receive the least of the credit. A Spanish soloist, Alberto Zerain, and the Italian Marco Confortola pushed for the top independently.
To climb the Bottleneck safely you must move through it fast, because it lives beneath a wall of overhanging ice. To move through it fast, you need fixed ropes already in place. So the teams agreed to pool their effort: an advance party of Sherpas and HAPs would go ahead in the dark and fix the lines for everyone.
It was a reasonable plan. Almost every step of what followed was reasonable. Almost every step of it was wrong.
The Rope Runs Out
Line was fixed where none was needed, and missing where it mattered most — under the ice, where the mountain charges by the hour.
The advance party started fixing lines in the night. They were joined by Alberto Zerain, who had climbed up from Camp III through the darkness and simply kept going, taking a share of the work.
Then the plan lost its keystone. Shaheen Baig — the most experienced HAP on the mountain, the veteran of the fixing party — turned back with altitude sickness. His unofficial command of the rope work went down with him, and the confusion he left behind would cost hours.
03:00 — Main body leaves Camp IV in the dark. Fixed line found laid just above camp, where none was needed.
~05:00 — At the mouth of the couloir the rope runs out. Line is stripped from the slopes below and re-laid, at altitude, by headlamp.
~08:00 — Climbers finally moving through the Bottleneck. The schedule has no spare hours left in it.
Some read the delay correctly and quit. Eric Meyer and Fredrik Sträng of the American team turned back for Camp IV, unwilling to reach the summit too late and unwilling to linger under the ice. Chris Klinke pushed on for a few more hours, then abandoned. So did Norit's Jelle Staleman.
The ones who kept going were now hours behind a schedule that had no hours to spare.
Four days on the dashboard
What follows is the disaster hour by hour, over the real terrain of K2 — every timestamped position drawn from the 2008 record. Each dot is a rope team. Scroll, and watch the mountain go dark.
Positions are placed approximately along the routes; times and altitudes are as documented in 2008.
Convergence on Camp IV
Ten expeditions' summit parties stage at ≈7,900 m on the Shoulder. Zerain rests at Camp III, planning to climb through the night. The advance party will leave first to fix the Bottleneck.
The lines are wrong
The main body starts up and finds rope fixed above Camp IV where none was needed — and none left at the traverse, where it matters most. Line is stripped from below and re-laid in the dark.
First dot goes dark
Dren Mandić unclips from the fixed rope in the Bottleneck — to adjust his oxygen, and to pass Cecilie Skog. He loses his balance and falls more than a hundred metres.
The recovery costs a second life
A party descends to Mandić's body. Lowering it, HAP Jehan Baig loses his footing, slides — and makes no attempt to arrest. The recovery is abandoned; the body is fastened to the mountain.
Zerain, alone on top
The Spaniard who climbed through the night summits first, by hours. He is back through the Bottleneck before the light fails — the only climber to come down entirely clean.
Eighteen on the summit
The safe turnaround hour is long gone. Summit parties keep arriving into the evening — some as late as eight o'clock. Rolf Bae stops ~100 m short and waits on the traverse for his wife.
SERAC FALL — LINES CUT
Darkness has enveloped K2. A tower of ice calves from the serac, shears the fixed ropes off the traverse, and strikes Rolf Bae. Every climber above is now unroped, at night, above 8,000 metres.
Free-solo, in the dark
Skog and Nessa downclimb unroped and reach Camp IV. Pemba Gyalje descends alone; Chhiring Dorje descends with Pasang Lama clipped to his harness. Two Bhote Sherpas climb up into the dark for Go Mi-Young. Hugues d'Aubarède, out of oxygen, falls.
Still above the couloir
Confortola, van Rooijen and McDonnell have sat out the night in the open, above the traverse. Below them, tangled in the cut ropes where they have hung all night: Jumik Bhote and Korean climbers — alive.
Two men stop
McDonnell and Confortola reach the tangled men and work for hours to free them. Van Rooijen, half snow-blind, descends — and loses the route, drifting left of the Česen line. "Big" Pasang Bhote climbs toward the couloir from below.
Freed — then the ice again
Pasang Bhote radios Gyalje: the trapped men are out of the ropes and moving. He also reports a fourth climber, in a red-and-black suit, swept away by icefall behind them. Gerard McDonnell is never seen again.
The fourth serac
Another icefall sweeps the top of the Bottleneck. It takes Jumik Bhote, the Korean climbers he survived the night with, and Pasang Bhote, the rescuer who had just radioed that he'd found them alive. Tsering Bhote, lower on the slope, is spared. The toll reaches eleven.
A satphone fixes a position
Van Rooijen, on a second night out with no tent, calls his brother in the Netherlands on a Thuraya satellite phone. The call's GPS coordinates place him on the south face. Van de Gevel and Gyalje climb back up and bring him in.
Helicopters at Base
Pakistani Army helicopters lift the frostbitten survivors to Skardu. Confortola comes off the mountain a day later. Eleven positions on this map never move again.
The First to Fall
Two men died before the disaster proper had even begun — one passing a stranger, one trying to carry a stranger home.
At 8:00 in the morning, climbers were finally moving up through the Bottleneck when the Serbian climber Dren Mandić unclipped from the fixed rope — to adjust his oxygen system, and to pass the Norwegian Cecilie Skog. He lost his balance. He fell into Skog, who was still clipped in and held. Mandić fell more than a hundred metres down the couloir.
From Camp IV, some thought they saw him still moving. A recovery party went up. By the time Fredrik Sträng reached the body, the Serbians Predrag Zagorac and Iso Planić and their HAP Mohammed Hussein were already there. There was no pulse.
As they tried to lower the body they were joined by Jehan Baig, a HAP from the French team, who had finished his rope work and been sent down. Something was wrong with him — he was incoherent, offering to help, refusing, returning. He lost his footing and slid into Sträng, who shouted at him to let go of the rope attached to Mandić before all four men were dragged off the mountain. Baig let go.
And then, to the horror of the men watching, he made no attempt to arrest his own slide. He did not roll onto his axe. He simply slid, and was gone. No one has ever been able to explain why Jehan Baig did not try to save himself.
The Serbians wrapped Mandić's body and fastened it to the mountain, and turned for home. It was the correct decision, and it was already too late to matter: the recovery had cost the climbers still above their last margin of daylight.
Too Late
on the Summit
Eighteen people stood on top of K2 on August 1, 2008. Some of them got there as the sun was going down.
The safe turnaround hour on K2 falls in the early afternoon — late enough to stand on top, early enough to be back through the Bottleneck and off the traverse before dark. Eighteen people summited on August 1, 2008. Some of them reached the top as late as eight in the evening.
Only Alberto Zerain — the Spaniard who had climbed through the night alone and topped out first, at three in the afternoon — came down clean: through the Bottleneck before the light failed, before the ice came down, before any of it. He walked off the mountain a free man, not knowing how close behind him the catastrophe had been.
Everyone else was still up high when the sun went down.
The Serac
The screen goes dark here. The timestamps keep running — but this is the death zone, at night, and no one could see anything at all.
By 8:30 in the evening, darkness had swallowed K2. The Norwegians Lars Flatø Nessa and Cecilie Skog had nearly finished the traverse back toward the Bottleneck when the mountain made its decision. A serac — a tower of ice hanging off the summit ice field, above the couloir — broke away. As it fell it sheared through the fixed lines, the ropes the whole ascent had been built around. And it struck Rolf Bae.
Bae had turned back about a hundred metres below the summit. He had told Nessa to look after his wife, and he had waited on the traverse for Skog to come down to him. He was still waiting there when the ice found him.
Skog and Nessa descended the rest of the way without ropes, in the dark, and somehow reached Camp IV alive. Behind them, the serac had changed everything. The fixed lines were gone. The route was littered with ice. And because every climber above had planned on those ropes, almost none of them carried spare line.
To get down now they would have to free-solo the Bottleneck — unroped, in the dark, above 8,000 metres, where the body cannot survive for long and the mind cannot be trusted at all.
By Wilco van Rooijen's account, panic broke out among the climbers stranded above the couloir. Some tried to descend into the blackness. Others sat down in the snow to wait for a dawn that several of them would not live to see.
The Night
on the Ropes
Some got down. The way they did it is why 2008 is remembered not only as a catastrophe but as a night of almost unbelievable courage.
Pemba Gyalje, the Sherpa climbing as a full member of the Norit team, descended the Bottleneck alone in the dark, without ropes, and reached Camp IV before midnight.
Chhiring Dorje came down with "Little" Pasang Lama — who had lost his ice axe — clipped directly to his harness. One man, one axe, two lives, on bare ice in the dark. Ed Viesturs later tried to picture it:
The Koreans Kim Jae-soo and Go Mi-Young made it through only because two Sherpas from the Korean team's support — Chhiring Bhote and "Big" Pasang Bhote — climbed up around midnight, found Go stranded and lost in the couloir, and guided her down.
Not everyone below was so lucky. Norit's Cas van de Gevel and the French team's Hugues d'Aubarède each took the Bottleneck alone in the dark. Van de Gevel, near the bottom, watched a figure fall past him. It was almost certainly d'Aubarède, who had run out of bottled oxygen hours before and, when van de Gevel passed him, had looked exhausted and waved him on ahead.
And highest of all, unable to find the way across the ice-strewn traverse, three men sat down to wait for morning: the Italian Marco Confortola, the Dutchman Wilco van Rooijen, and the Irishman Gerard McDonnell — an open bivouac above 8,000 metres. Confortola later said that during that night he heard a roar out of the serac field, screaming, and a head-torch tumbling away below him.
What Gerard Did
He had survived the serac, the free-solo, the open bivouac. He was almost down. He stopped.
Gerard McDonnell was almost down. He had survived the serac, survived the descent in the dark, survived the open bivouac — survived the night that had already killed men stronger than he was. And then, in the morning light above the Bottleneck, he and Confortola came upon three men tangled in the cut ropes: Korean climbers and their guide Jumik Bhote. They had been hanging there all night. Some were upside down. Some were bloodied. All of them, impossibly, were still alive.
He did not have to stop. Every instinct at that altitude screams a single word — down — and van Rooijen, who had come upon the tangled men slightly earlier, had done what almost anyone would do: handed over his spare gloves, been told a rescue party was already climbing up from below, and continued his own descent toward survival, half-blind and freezing.
McDonnell stopped. He and Confortola worked for hours in the death zone trying to free strangers from the ropes.
What happened next is the great uncertainty of the day — and it is why this page, like the story of 1939, ends not with an answer but with evidence you must weigh yourself.
Three Accounts of the Same Morning
In 1939 there was too little evidence and fifty years of silence. In 2008 there was a flood of it — and the truth fractured anyway. Tap each file to weigh it.
The delusion account
Confortola said that after roughly an hour and a half working the ropes, McDonnell suddenly turned and climbed back up the mountain, leaving him alone with the trapped men. He assumed altitude sickness and delusion. He stayed, did what he could for Jumik Bhote, radioed the rescuers climbing toward them, and finally descended — crawling. Later, near the foot of the couloir, icefall struck close by; in the debris he found a body he identified as McDonnell's.
The anchor account
Van Rooijen disputes it. He does not believe McDonnell climbed away in delusion — he believes McDonnell climbed up to the highest anchor to take the strain off the ropes that held the tangled men, then came back and spent hours more freeing them. He points to photographs he says support this.
The red-and-black suit
Just after noon, "Big" Pasang Bhote radioed Pemba Gyalje: he had met Jumik Bhote and Korean climbers just above the Bottleneck — alive, and freed. Someone had gotten them out of the ropes. He also reported a fourth climber, in a red-and-black suit, swept away by icefall behind them. The suit matched McDonnell's. The implication: McDonnell freed the trapped men, and the ice took him afterward.
The Fourth Serac
After the long, slow uncertainty of the evidence — this took a single breath.
Minutes after "Big" Pasang Bhote radioed that he had found his relative Jumik and the Korean climbers alive — another serac fell.
It swept away all of them: Jumik Bhote, the Korean climbers who had survived a night hanging in the ropes, and Pasang Bhote himself — the rescuer, killed alongside the relative he had climbed up to save.
Tsering Bhote, climbing more slowly, not yet at the top of the couloir, was spared. So were Gyalje and Confortola, below.
The death toll had reached eleven.
Buried in the Sky
The story the first reports left out was the story of the men at its centre.
For days, the story the world received was the one told first — by the survivors who reached the media first, while Pemba Gyalje was still walking out of the Karakoram. It would be days before he could give his account at all.
The correction came slowly, and it came from the people who had done the most and been credited the least. The Sherpas and the Pakistani HAPs had fixed the ropes, climbed back up in the dark without oxygen to guide lost strangers down, and died trying to free men from the ice. Four of the eleven dead were high-altitude workers — two Pakistani porters, two Nepali Sherpas.
In time the record was set straighter. Pemba Gyalje was named National Geographic Adventure's Adventurer of the Year for 2008. And a book — Buried in the Sky, by Peter Zuckerman and Amanda Padoan — finally told the day through the eyes of the Sherpa and HAP climbers who had lived at its centre all along.
The truth of the day, in the end, rested less on the survivors who wrote the first books than on a Sherpa who was still on the mountain while the story was being told without him.
While the fourth serac was falling, Wilco van Rooijen was somewhere else entirely — descending a new line left of the Česen route, bypassing Camp IV, half snow-blind, alone. He spent a second night bivouacked in the open, his feet freezing toward third-degree frostbite — one of a handful of people ever to survive two nights out above the death line.
He was found because he used his Thuraya satellite phone to call his brother — and the GPS coordinates of that call pinpointed him on the mountain. Van de Gevel and Gyalje climbed back up and reached him on the morning of August 3; the three staggered into Base Camp that night. On August 4, Pakistani Army helicopters lifted the frostbitten climbers to Skardu. Confortola came off a day later.
In 2008, technology could find you. It still could not bring the ice down any slower.
The most documented day the mountain ever had
Footage © the filmmakers · short credited local excerpt · see clips/README for sourcing
The Eleven
August 1–2, 2008 · Their names join Dudley Wolfe's at the Gilkey Memorial above Base Camp
K2 was not summited at all in 2009 or 2010; in 2010 the ski-mountaineer Fredrik Ericsson was killed in a fall in the same couloir. The summit was not reached again until August 23, 2011. The Bottleneck is still there. The seracs above it are still there. In 1939 Fritz Wiessner looked up at that ice and chose the rock instead — and, as the American Alpine Club's reviewer wrote, decades later: he was right.
Sources & Further Reading
Everything on this page is drawn from the documented record. Where survivors' accounts conflict, the page presents the conflict rather than resolving it.