The 1922 British Mount Everest expedition was the first mountaineering expedition with the express aim of making the first ascent of Mount Everest. It was also the first expedition that used bottled oxygen while climbing Everest. The attempt was made from the northern side of Everest out of Tibet. At the time, Everest could not be attempted from the south out of Nepal as the country was closed to Western foreigners.

The 1921 British Mount Everest reconnaissance expedition had explored all the eastern and northern surroundings of the mountain. In searching for the easiest route, George Mallory, who would also be a member of the 1924 expedition (and the only person on all three expeditions in 1921, 1922, and 1924), had discovered a route which, in his opinion, would allow an attempt on the summit.

The expedition attempted to summit, unsuccessfully, three times. On the third attempt seven Nepalese porters died as the result of a group-induced avalanche, the expedition decided to return to the base and not attempt the summit again. The expedition marked the first reported climbing deaths on Everest. The expedition did, however, establish a new world record climbing height of 8,321 metres (27,300 ft) during its second summit attempt. This record was exceeded in the 1924 expedition.

A focus of the attempted ascent was an expression of the thinking that was common in the British Empire. As the British were unsuccessful as the first to reach the North and South Poles they tried to go to the so-called "third pole"; to "conquer" Mount Everest.

Cecil Rawling had planned three expeditions in 1915 and 1916 that did not happen due to the outbreak of the First World War and Rawling's death in 1917. The expeditions in the 1920s were planned and managed by the British Royal Geographical Society and the Alpine Club in a joint Mount Everest Committee.^[1]

The surveying activities in 1921 allowed the creation of maps needed for the 1922 expedition. John Noel took on the role of official expedition photographer. He took with him three film cameras, two panorama cameras, four sheet cameras, one stereo camera and five Vest Pocket Kodaks. The latter were small lightweight cameras that could be taken by the mountaineers to great heights. These cameras were intended to allow climbers to document a possible summit success. The expedition also took a special "black tent" for photographic work. Thanks to Noel's efforts, many photographs and one film chronicled the expedition.^[2]

During the 1921 expedition they learned the best time for a summit bid would be April–May before the monsoon season. The expeditions in 1922 and 1924 were planned accordingly.

The 1922 expedition can be seen as the start of the enduring question of "fair means" and controversies about using bottled oxygen in the Everest "death zone". Alexander Kellas was one of the first scientists who pointed out the possible use of bottled oxygen for accessing great heights. At this time the available technology (derived from mining rescue systems) were, in his opinion, too heavy to be a help at high altitudes. Kellas was part of the Everest reconnaissance expedition in 1921 but died on the way to Everest. That expedition had taken bottled oxygen with them, but it was never used. Few paid much attention to Kellas' innovative ideas, possibly because his scientific work belonged strictly to the amateur tradition.

More attention was paid to the pressure vessel experiments of Professor Georges Dreyer, who had studied high-altitude problems the Royal Air Force encountered in the First World War. According to his experiments—which he did partly together with George Ingle Finch—survival at great heights could only be possible with the aid of additional oxygen.

As a consequence of this scientific work, the 1922 expedition planned to use bottled oxygen. One bottle contained ca. 240 liters of oxygen. Four bottles were fixed on a carrying frame which had to be carried by the mountaineer. With the additional elements the total weight was 14.5 kg, so every mountaineer had to carry an additional heavy load. Ten of these systems were taken. As well as a mask over mouth and nose, a tube was held in the mouth. Dreyer also had proposed the flow of oxygen: at 7,000 m (22,970 ft) a flow rate of 2 liters of oxygen per minute, on the summit climb they should use 2.4 liters per minute.^[3] The result was a usable time of two hours per bottle. All the oxygen would be used up after a maximum of 8 hours of climbing. Nowadays, 3 or 4-litre bottles are filled with oxygen of 250 bar pressure. At a flow of 2 liters per minute a modern bottle can be used for about 6 hours.^[4]

George Finch was responsible for this equipment during the expedition, due to his background in chemistry and his specific knowledge of bottled oxygen. He ordered daily training for his climber colleagues to become accustomed in the use of this equipment. The apparatuses were very often faulty, were of low robustness and were very heavy with a low grade of oxygen filling. There was unhappiness about these bottles among the mountaineers; many intended to climb without use of these bottles.^[2][3] The Tibetan and Nepalese porters nicknamed these oxygen bottles "English air".

The expedition participants were selected not just for their mountaineering qualifications but also for their family background, military experience, and professions.^[1][2]

The mountaineers were accompanied by a large group of Tibetan and Nepalese porters so that the expedition in the end counted 160 men.

The journey to base camp primarily followed the route used in 1921. Starting in India, the expedition members gathered in Darjeeling at the end of March 1922. Some participants had arrived one month earlier to organize and recruit porters. The journey started on 26 March for most participants. Crawford and Finch stayed a couple more days to organize transportation for the oxygen systems. These items had arrived too late in Kolkata when the main travel started in Darjeeling. This further organization went well and further transportation of the bottles was without incident.

For the journey through Tibet they had a travel permit from the Dalai Lama. From Darjeeling the route went to Kalimpong where they visited St Andrew's Colonial Home. Here they were welcomed by the home's founder John Anderson Graham and the schoolmaster and writer Aeneas Francon Williams.^[5] At the homes they spent a couple of days rest before traveling onto Phari Dzong and further to Kampa Dzong which they reached on 11 April. Here the group rested for three days so that Finch and Crawford could catch up to the team with the oxygen bottles. Then they went to Shelkar Dzong, then north to the Rongbuk Monastery and to the spot where they wanted to erect base camp. To promote the process of acclimatization the participants alternated their travelling methods between walking and horse riding. On 1 May, they reached the lower end of the Rongbuk Glacier, the site of base camp.^[6]

When this expedition was being planned, Everest was only able to be climbed from the north out of Tibet because the southern side in Nepal was closed to Western foreigners. Mallory had discovered a "makeable" route in 1921 from the Lhakpa La to the north face of the mountain and further to the summit. This route begins at the Rongbuk Glacier, then leads through the rough valley of the eastern Rongbuk Glacier and then to the icy eastern slopes of the North Col, after which the exposed ridges of North Ridge and Northeast Ridge allow an access in direction of the summit pyramid. A severe climbing hindrance, at the time an unknown obstacle, was the so-called Second Step at 8,605 m (28,230 ft), one of three breaks in slope on the upper northeast ridge. This step is approximately 30 m high and has a slope of more than 70 degrees, with a final wall of nearly seven vertical metres. From there the ridge route leads to the summit, by lengthy but gentle slopes. (The first official successful climb on this route was the Chinese ascent of 1960).^[7] The British also investigated a route via the north wall flanks of the mountain and to ascend by the later so called Norton Couloir to the Third Step and to the summit. (This route was used by Reinhold Messner on his first solo ascent in 1980).

The base camp area in the Rongbuk Valley and the upper east Rongbuk Glacier were known from the 1921 reconnaissance expedition but the eastern Rongbuk Glacier valley had not been climbed. On 5 May, Strutt, Longstaff, Morshead and Norton tried a first intensive reconnaissance of this valley. The Advanced Base Camp (ABC) was erected on the upper end of the glacier below icy slopes of the North Col at 6,400 m (21,000 ft). Between the base camp and the advanced base camp they erected two intermediate camps: Camp I at 5,400 m (17,720 ft) and Camp II at 6,000 m (19,690 ft). The erection and the feeding of these camps was supported by local farmers who only could help for a short time before returning to their own farms.^[6] Longstaff became exhausted in managing the organization and transporting tasks and became so ill that he could not do any real mountaineering activities later on in the expedition.^[2]

On 10 May Mallory and Somervell left base camp to erect Camp IV on the North Col. They arrived at Camp II two and a half hours later. On 11 May they set out on the North Col.^[6] This camp^[which?] was at a height of 7000 m and was supported with food. The further plan was to do a first ascent trial by Mallory and Somervell without supplemental oxygen, then followed by a second climb by Finch and Norton with oxygen. However, these plans failed as a majority of the climbers became ill. So it was decided that the (more or less) healthy climbers Mallory, Somervell, Norton and Morshead should climb together.^[2]

This first attempt was made by Mallory, Somervell, Norton and Morshead without oxygen, and supported by nine porters. They started on 19 May from Camp III. They climbed at 8:45 a.m. to the North Col. According to Mallory, the day was nice and sunny. Around 1 p.m. they erected tents. The following day, the climbers intended to carry only the bare minimum: two of the smallest tents, two double sleeping bags, food for 36 hours, a gas cooking system and two thermos bottles for drinks. The porters were three persons per tent and they were in good health at this point in time.

The following day, 20 May, Mallory was awake around 5:30 a.m. and inspired the group to start the day. The porters had slept badly the night before, as the tents provided inadequate air flow and let little oxygen into them. Only five of them intended to go up higher on the mountain. As there were also problems in preparing the food, they started the further climb around 7 a.m. However, the weather worsened and the temperature fell dramatically. Above the North Col they climbed on unknown territory. Never before had any mountaineer climbed on the summit slopes of such a mountain. The porters had no warm clothing and shivered excessively. As the effort required to cut steps into the icy slopes was severe because of the hard ice surface they dropped their plan to erect a camp at 7,925 m (26,000 ft). They only went to 7,620 m (25,000 ft) (which is common also for today) and erected a small camp which was named Camp V. Somervell and Morshead could erect their tent quite upright but Mallory and Norton had to use an uncomfortable slope some 50 metres away. The porters were sent down the mountain.

On 21 May the four mountaineers left their sleeping bags around 6:30 a.m. and were ready to go around 8 am. During preparation a rucksack with food fell down the mountain. Morshead, who had to fight the cold, was able to regain this rucksack but he was so exhausted from this action that he could not go higher. The climb of Mallory, Somervell and Norton was along the north ridge in direction of the upper northeast ridge. The circumstances were not ideal ones as a light snowfall began to cover the mountain. According to Mallory the snow ramps were not hard to climb. Shortly after 2 p.m. the mountaineers decided to turn around. They were 150 m below the ridge. The gained height was 8,225 m (26,985 ft) which was a world record in climbing. Around 4 p.m. they got back to Morshead in the last camp and climbed down with him. There was nearly an accident as all mountaineers except Mallory began to slip. However, Mallory was able to hold them by his rope and ice axe. They got back to Camp V in the dark and crossed a dangerous area of crevasses above the camp. On 22 May 1922, having reached the highest altitude achieved by climbers up to that time— 26,800 feet (8,200 m)^[8]— they started to climb down from North Col at 6 am.^[6]

The second climb was done by George Ingle Finch, Geoffrey Bruce and the Gurkha soldier Tejbir Bura with oxygen support. After Finch had regained his health he stated that no real mountaineer even of lesser ability was available, so searched for others fit enough to climb. Bruce and Tejbir seemed to be qualified next. In the days before the oxygen bottles had been transported to Camp III so that enough bottles were available on the upper slopes. The three mountaineers went to camp III on 20 May, checked the bottles and found them in a good state.

On 24 May they climbed to the North Col together with Noel. There Finch, Bruce and Tejbir began at 8 a.m. the following day to climb via the north ridge and on to the northeast ridge. The extreme wind was quite a hindrance the entire climb. Twelve porters transported the bottles and the other equipment. In doing this again it was evident that the use of oxygen was a great help. The three mountaineers could climb much faster than the porters despite their heavier loads. As the wind grew intense they erected camp at 7,460 m (24,480 ft). The following day 26 May the weather worsened and the group could climb no further.

They again climbed on 27 May. At this point the food was nearly exhausted as such a long lasting climb had not been planned. Nevertheless, they started at 6:30 a.m. with the sun shining, but climbing was hindered by a steadily increasing wind. Tejbir who had no suitable clothing against the wind grew slow and slower and broke down at 7,925 m (26,000 ft). Finch and Bruce sent him back to the camp and again climbed to the northeast ridge but they were no longer roped together. At 7,950 m (26,080 ft) Finch changed the route because of the severe wind conditions and they entered the north wall flank in the direction of the steep couloir later named "Norton Couloir". They made good progress horizontally but they gained no further elevation. At 8326 m Bruce had a problem with the oxygen system. Finch determined that Bruce was exhausted and so they turned back. During this climb the height record was broken again. At 4 p.m. the mountaineers got back to the Camp on the North Col, and 1½ hours later they were back at Camp III on the upper Eastern Rongbuk Glacier.^[6]

In the medical opinion of Longstaff, they should not have made a third try, as all mountaineers were exhausted or ill. However, Somervell and Wakefield saw no big risks, and a third try was undertaken.

On 3 June Mallory, Somervell, Finch, Wakefield and Crawford started with 14 porters at base camp. Finch had to quit in Camp I. The others arrived in Camp III on 5 June and spent one day there. Mallory had been impressed by the power of Finch, who in the second attempt had climbed much higher in the direction of the summit and also was nearer to the summit in horizontal distance. Mallory now also wanted to use oxygen.^[2]

On 7 June Mallory, Somervell and Crawford led the porters through the icy slopes of North Col. The 17 men were divided into four groups, each one roped together. The European mountaineers were in the first group and compacted the snow. Halfway a piece of snow became loose. Mallory, Somervell and Crawford were partially buried under snow but managed to free themselves. The group behind them was hit by an avalanche of 30 m of heavy snow, and the other nine porters in two groups fell into a crevasse and were buried under huge masses of snow. Two porters were dug out of the snow, six other porters were dead, and one porter could not be retrieved dead or alive. This accident was the end of the climbing and marked the end of this expedition.^[9] Mallory had made a mistake attempting to go straight up on the icy slopes of the glacier instead of trying lesser slopes in curves. As a result, the climbers triggered an avalanche.

On 2 August all the European expedition members were back in Darjeeling.^[10]

After their journey back to England, Mallory and Finch toured the country making presentations on the expedition. This tour had two goals. First, interested audiences would get information on the expedition and the results. Second, with the financial results of this journey another expedition should be financed. Mallory additionally made a three-month trip to the United States. During this travel Mallory was asked why he wanted to climb Mount Everest. His answer: "Because it is there" became a classic.^[11] The intended 1923 expedition to Everest was delayed by financial and organizational reasons. There was insufficient time to prepare another expedition the following year.

The film recorded by Noel during this expedition was also published. Climbing Mount Everest was shown for ten weeks in Liverpool's Philharmonic Hall.^[2]

The European expedition members received Olympic gold medals for alpinism in 1924, which were presented by Pierre de Coubertin at the closing ceremony of the 1924 Winter Olympics in Chamonix.^[12][13] The medals bore the inscription of the 1924 Summer Olympics in Paris.^[14] Medals were also awarded to Nepalese soldier Tejbir Bura and to seven Sherpas who died during the ascent.^[15]

• Timeline of Mount Everest expeditions

• Breashears, David; Salkeld, Audrey (2000). Mallorys Geheimnis. Was geschah am Mount Everest? (in German). Steiger. ISBN 3-89652-220-5.
• Holzel, Tom; Salkeld, Audrey (1999). In der Todeszone. Das Geheimnis um George Mallory und die Erstbesteigung des Mount Everest (in German). Goldmann Wilhelm GmbH. ISBN 3-442-15076-0.
• West, John B. (May 2003). "George I. Finch and his pioneering use of oxygen for climbing at extreme altitudes". Journal of Applied Physiology. 94 (5). American Physiological Society: 1702–1713. doi:10.1152/japplphysiol.00950.2002. PMID 12679344. Archived from the original on 12 October 2008. Retrieved 26 December 2008.

• The Assault on Mount Everest, 1922 at Project Gutenberg
• "Book on expedition by Mick Conefrey". Allen & Unwin. 2021.