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SM-001 Mountaineering · Mount Everest 1924

Mallory and Irvine on Everest — Last seen near the top, never seen alive again

altitudeexposurefallsvanished1900-1949
Lost
2 climbers (party of ~2 high)
Peak
Mount Everest, 8,849 m
Ended
8 June 1924, NE ridge
Status
Vanished

Summary

On 8 June 1924, high on the northeast ridge of Mount Everest, the British climbers George Leigh Mallory and Andrew "Sandy" Irvine disappeared into cloud and were never seen alive again. They were the lead pair of the third British expedition to the mountain, attempting the first ascent of the highest point on Earth from the Tibetan side. Both men died — Mallory's body was found in 1999, more than a kilometre below the summit, and partial remains believed to be Irvine's were located in 2024. Neither return nor success was ever established.

The expedition was led in the field by Lieutenant Colonel Edward Felix Norton, after the nominal leader, Brigadier General Charles Bruce, fell ill with malaria on the approach. Days earlier, on 4 June 1924, Norton had climbed without supplementary oxygen to roughly 8,573 metres (28,126 ft), a confirmed altitude record that would stand for nearly three decades. Mallory, the driving spirit of the British Everest effort since 1921, chose the young and mechanically gifted Irvine — and the controversial bottled oxygen — for one last attempt.

The geologist Noel Odell, climbing in support below, caught the last confirmed sighting: two tiny figures moving on the upper ridge, by his account "going strong for the top." Then the weather closed in and they were gone. Whether Mallory and Irvine reached the summit twenty-nine years before Edmund Hillary and Tenzing Norgay stood there on 29 May 1953 remains one of mountaineering's enduring unanswered questions. Throughout, the expedition relied on Tibetan and Sherpa porters who carried loads and built camps high on a freezing, unmapped mountain, and whose labour made every British attempt possible.

Timeline

1921
Reconnaissance
The first British Everest expedition maps the Tibetan approach; Mallory identifies the North Col route to the summit.
1922
First attempts and first deaths
The second expedition reaches over 8,300 m; an avalanche on the North Col kills seven Tibetan and Sherpa porters.
18 March 1923
"Because it's there."
Mallory, lecturing in the United States, gives a New York reporter the famous terse answer for why he wants to climb Everest.
Late Mar 1924
The third expedition advances
The 1924 party moves up through Tibet toward the Rongbuk valley, the great northern approach to the peak.
28–29 Apr 1924
Base established
The expedition reaches Rongbuk Monastery and sets up base camp at roughly 5,180 m.
4 June 1924
Norton's record
Norton, climbing without oxygen, reaches about 8,573 m before turning back, snow-blind on the descent — an altitude record unbroken until 1952–53.
6 June 1924
The last departure
Mallory and Irvine leave the North Col camp with oxygen sets, supported by porters, bound for the high camps and a summit bid.
8 June 1924
Odell's sighting
From below, Odell sees two figures high on the ridge "going strong for the top"; cloud closes in and they are never seen alive again.
19 June 1924
Mourned
With no sign of the pair after days of watching, the expedition accepts their deaths and withdraws from the mountain.
30 May 1933
The ice axe
A later British expedition finds an ice axe at about 8,450 m on the ridge, almost certainly Mallory's or Irvine's.
1 May 1999
Mallory found
A research expedition led by Eric Simonson, with Conrad Anker making the find, locates Mallory's body at 8,156 m; no camera is recovered.
Sept 2024
Irvine's trace
A National Geographic team led by Jimmy Chin finds a boot and foot with a sock labelled "A.C. IRVINE" on the Central Rongbuk Glacier.

A mountain reached only through Tibet

In 1924 Everest had never been climbed, and Nepal was closed to foreigners; the only way to the peak ran north, through Tibet. The British expeditions of 1921, 1922 and 1924 crossed the high plateau to the Rongbuk valley, then climbed the glaciers to the North Col at about 7,000 metres and on along the North Ridge onto the Northeast Ridge toward the top. Every camp and every load of food, fuel, tents and oxygen cylinders was carried up that route by porters drawn largely from Tibetan and Sherpa communities. Around sixty high porters and many more transport porters sustained the 1924 effort, with a small elite of high-altitude carriers — later celebrated as "Tigers" — pushing loads into the thin air of the upper mountain. The cost was not abstract: in 1922 an avalanche on the North Col had killed seven porters, the first deaths of the modern Everest era, a reminder that the mountain's danger fell first and heaviest on the men who carried.

George Mallory, then in his late thirties, had been the constant of the British campaign, present on all three expeditions and increasingly its emotional centre. Andrew Irvine was only twenty-two, an Oxford rowing blue with limited high-mountain experience but exceptional practical skill; he spent much of the expedition rebuilding and lightening the temperamental oxygen apparatus, repairing valves and fittings the manufacturers had not designed for the cold and altitude of Everest. That mechanical gift was part of why Mallory chose him. The expedition was, in the framing of its day, an imperial undertaking with a triumphalist press behind it; this record corrects that emphasis, restoring the porters to the centre of the story and treating the climbers' ambition as a hazard to be diagnosed rather than a glory to be sung.

The eighth of June

By early June the expedition had made two oxygen-free attempts. On 4 June Norton and Howard Somervell climbed high into the band of cliffs below the summit; Somervell turned back coughing up part of his frostbitten larynx, and Norton pressed on alone to roughly 8,573 metres before retreating, his eyes failing in the glare. It was the highest any human had verifiably climbed. Convinced that oxygen offered the better chance, Mallory paired with Irvine and the gear Irvine had nursed into working order.

On 6 June the two left the North Col and moved up to the high camps. On 8 June, in unsettled weather, they set out for the summit along the Northeast Ridge — a route barred by rock steps, including the formidable obstacle later known as the Second Step. Far below, Noel Odell was climbing in support and watching the upper mountain through breaks in the cloud. At around 12:50 p.m. he saw two small dark figures moving on the ridge, one then the other surmounting a step, before mist drew across the scene. By his account they were "going strong for the top." Odell's recollection of exactly which step he saw them on shifted over the years, and that uncertainty sits at the heart of the summit question. The weather worsened; no one saw them again. Odell climbed twice more to the high camps over the following days, searching and signalling, and found nothing. The expedition kept watch until, on 19 June, it accepted that both men were dead and turned for home.

Seventy-five years, then the cold gives up a body

For decades the pair existed only as a question. In 1933 a British expedition found an ice axe at about 8,450 metres on the ridge, almost certainly left by Mallory or Irvine and a clue to where things had gone wrong. In 1975 a Chinese climber, Wang Hongbao, reportedly came upon "an old English dead" at around 8,100 metres, vintage clothing crumbling at his touch; he died in an avalanche before he could be questioned closely, but his account guided later searchers. The historian Jochen Hemmleb used these fragments to plot a search zone, and on 1 May 1999 a research expedition led by Eric Simonson sent climbers across that slope. Conrad Anker found Mallory's body at 8,156 metres — far better preserved than anyone expected, frozen into the scree, the back bleached white by the wind.

The body told part of the story. Mallory's right leg was broken, his ribs crushed by a rope that had been around his waist when he fell — evidence that he and Irvine had been roped together at the end, and that a rope-jerk had arrested a fall before a long slide. In his pockets were letters, an altimeter, a pocket knife and his snow goggles, the goggles tucked away, hinting that he was descending in failing light when he fell. Two things were absent: the Vest Pocket Kodak camera the pair were thought to be carrying, whose film might still settle the summit question, and the photograph of his wife Ruth that Mallory had said he would leave on the top. Irvine remained lost until September 2024, when a National Geographic team led by Jimmy Chin found a boot and foot with a sock stitched "A.C. IRVINE" on the Central Rongbuk Glacier far below — partial remains, melted from the ice, still without a camera and still without an answer.

The Five Factors

01
The thin-air ceiling
Everest's summit stands near 8,849 metres, deep in what later climbers named the death zone, where the body deteriorates faster than it can recover and judgment erodes with the oxygen. In 1924 no one knew whether human beings could survive there at all. Mallory and Irvine were operating at the absolute edge of the physiologically possible, with no margin for the small mistakes that altitude makes large.
02
A bet on immature technology
Mallory chose bottled oxygen for the final attempt, and Irvine spent the expedition coaxing the heavy, leak-prone sets into reliability. The gear extended their reach but added weight, complexity and a single point of failure; a depleted or broken set high on the ridge would have stranded them in the open with no reserve. Reliance on a tool not yet proven in the conditions it was meant for is a recurring mechanism of high-altitude disaster.
03
Summit fever and a closing window
This was the season's last realistic chance before the monsoon, on the third and most heavily invested British expedition, with Mallory personally bound to the mountain across three years. Such pressure pushes parties past sensible turnaround points. Odell's sighting placed the pair high but late in the day, the classic signature of a team that has spent too long going up to descend safely.
04
No retreat and no rescue
There was no possibility of help on the upper ridge: no second team within reach, no way to signal distress, no margin for a benighted descent. Once anything went wrong above the high camp, the two men were entirely on their own. The absence of any rescue capacity converts a survivable error into a fatal one.
05
The unrecoverable margin
The physical evidence — broken leg, rope injury, stowed goggles — points to a fall during descent, possibly in darkness, on terrain that offered no second chance. Whether triggered by exhaustion, a slip, failing oxygen or weather, a single fall on that ground was unrecoverable. The mechanism that killed them is the oldest in mountaineering: a small loss of control on steep ground at altitude, with nothing below to stop the slide.

Aftermath

Two men died, and the expedition returned in mourning to a Britain that received the loss as both tragedy and legend. Mallory, with his eloquence and his vanishing, became the era's emblem of the mountain, and Irvine — young, capable, barely known before the climb — entered the story beside him. The deeper toll of the campaign also included the seven porters killed in the 1922 avalanche, men whose names entered the record far more faintly than the climbers they served.

The mountain was not climbed for another twenty-nine years, until Edmund Hillary and Tenzing Norgay reached the summit on 29 May 1953 by the Nepalese route to the south. From the 1930s onward, expeditions searched the northern slopes for traces of 1924 — the 1933 ice axe, Wang Hongbao's reported body, and at last the 1999 discovery of Mallory and the 2024 discovery of Irvine's boot. The central question survives every find: the camera that might hold a summit photograph has never been recovered, and the careful consensus is that there is no proof Mallory and Irvine reached the top, and likely none that they did not. They are remembered soberly now — not as conquerors but as two men lost near the limit of the known world, on a mountain that has since taken hundreds more, many of them the Sherpas without whom none of it was possible.

Lessons

  1. Treat a hard turnaround time as binding; a summit reached too late is a death deferred, not a victory won.
  2. Do not stake survival on technology unproven in the exact conditions it must endure — redundancy and reliability outrank reach.
  3. Build a real margin for retreat and rescue before committing to ground where a single fall is unrecoverable.
  4. Name and credit the local guides and porters whose labour and risk underpin every expedition, rather than erasing them behind the leaders' fame.
  5. Refuse the romance of the unverified summit; absence of proof is not achievement, and honest uncertainty serves the dead better than legend.

References