K2 Himalayan Peak: Height, Location, History, Routes, and Why It Is Called the Savage Mountain

The K2 Himalayan peak is the second highest mountain on Earth, a sharp pyramid of rock and ice whose summit stands 8,611 meters (28,251 feet) above sea level. It rises far from roads and villages on the border between Pakistan and China, and climbers rank it among the most difficult of the fourteen 8,000 meter peaks. This guide explains where the mountain stands, how it got its unusual name, the story of its first ascent and of the major attempts since, its main routes, the trek to base camp, the weather and the season, and the climbing skills and training any serious attempt demands.

K2 facts at a glance

• Height: an elevation of 8,611 meters (28,251 feet), the second highest peak in the world after Mount Everest.
• Range: the Karakoram, often grouped with the Himalaya as part of the great mountain ranges of High Asia.
• Border: between the Gilgit Baltistan region of Pakistan and the Taxkorgan Tajik Autonomous County of Xinjiang, China.
• Other names: Mount Godwin Austen, Chogori, and Qogir.
• Nickname: the Savage Mountain.
• First ascent: July 31, 1954, by Lino Lacedelli and Achille Compagnoni of an Italian expedition.
• Normal route: the Abruzzi Spur on the southeast ridge, from Pakistan.
• First winter ascent: January 16, 2021, by a Nepali team.

Where is K2?

K2 is located in the Karakoram Range, a chain of glaciated mountains that runs northwest of the main Himalaya. People often call it a Himalayan peak because the Karakoram belongs to the same vast system of high mountains between South and Central Asia, but geographers treat it as a separate range. The rock itself is mostly gneiss from the Karakoram Metamorphic Complex.

The southern side of the mountain lies in the Baltistan region of Gilgit Baltistan, administered by Pakistan, and nearly every party approaches from the south, through northern Pakistan. The northern side drops into the Shaksgam valley in the Taxkorgan Tajik Autonomous County of Xinjiang, administered by China. The Chinese side is far more remote, and only a handful of parties have tried it. Getting to the north face means a long journey across Xinjiang and a camel supported approach, while the Pakistani side has a well known trek along the Baltoro Glacier.

K2 also has huge relief. Its topographic prominence is 4,020 meters (13,190 feet), the 22nd highest on the planet, and from Concordia, the famous glacier junction below it, the peak seems to rise straight out of the ice. Few peaks in the world look so imposing from every direction.

Several long ridges and huge faces define the pyramid. The southeast ridge carries the normal route, the northeast ridge rises from the eastern flank, and the north ridge drops toward the Shaksgam valley and Xinjiang. Between them, the south face, the west face, and the north face offer some of the most difficult climbing on any high mountain. The north face and north ridge are on the Chinese side, so anyone who wants to climb them needs a Chinese permit and a long approach through Xinjiang. Some older maps still label the whole massif Mount Godwin Austen.

K2 vs Mount Everest

Mount Everest, at 8,849 meters (29,032 feet), is the highest mountain on Earth, and K2 sits 238 meters lower. Height is where the comparison ends, and the contrast is stark. On Mount Everest, a large commercial industry, fixed ropes, and established camps make the normal routes accessible to many climbers with strong Sherpa support. K2 is steeper from every angle, has no easy route, sits farther north where the weather is colder and less stable, and has seen far fewer ascents. The technical climbing starts low and continues almost to the top, while the upper part of Mount Everest is mostly a long snow slope.

The numbers reflect the difference. As of 2023, Mount Everest had been climbed thousands of times, while K2 had about 800 summit ascents. Before 2021, roughly one death was recorded for every four people who reached the top of K2, a ratio that explains its reputation. For a contrast with lower but serious objectives, read our guides to Aconcagua, the highest point in the Americas, and to the Matterhorn in the Alps.

How K2 got its name

The name is a survey label from colonial India. In 1856, Thomas Montgomerie, working for the Great Trigonometrical Survey of India, sketched the Karakoram from Haramukh in Kashmir, then part of the princely states of India, and numbered the main summits K1, K2, and so on, with K standing for Karakoram. The survey of India mapped thousands of peaks this way across British India, and survey officers in Kashmir used the same numbering method across the Karakoram range. Most of those mountains later received local names, but K2 kept its code because it is barely visible from inhabited valleys. The mountain cannot be seen from Askole, one of the last villages on the approach, and appears only from the upper Baltoro Glacier.

Other names exist. Mount Godwin Austen honors Henry Godwin Austen, an early surveyor of the area, though the Royal Geographical Society rejected it. Chogori comes from two Balti words meaning big and mountain, and Qogir is the Chinese form. The nickname Savage Mountain came from George Bell, a member of the 1953 American expedition, who told reporters that it was a savage mountain that tries to kill you.

History of the K2 expeditions

Early attempts

The first serious attempt came in 1902, when Oscar Eckenstein and Aleister Crowley reached about 6,525 meters on the northeast ridge. In 1909, an Italian expedition under Prince Luigi Amedeo, Duke of the Abruzzi, reached about 6,250 meters on the southeast ridge, the route that now carries his name. American teams came next. Charles Houston led an American expedition in 1938 that reached about 8,000 meters on the Abruzzi Spur, and Fritz Wiessner came within about 200 meters of the summit in 1939. In 1953, Houston returned with another American party that was pinned down by a storm high up and forced to retreat, an epic remembered for a famous ice axe belay by Pete Schoening.

The 1954 Italian expedition

The first ascent belongs to the 1954 Italian expedition led by Ardito Desio. On July 31, 1954, Achille Compagnoni and Lino Lacedelli reached the summit by the Abruzzi Spur. Their success depended on Walter Bonatti and the Hunza porter Amir Mahdi, who carried oxygen bottles up to about 8,100 meters. The two summit climbers had pitched their last tent higher than agreed, so Bonatti and Mahdi had to spend the night in the open without shelter. Mahdi suffered severe frostbite, and the episode became one of the longest disputes in mountaineering history before Bonatti's account was officially accepted decades later.

Later milestones

• 1977: a large Japanese expedition led by Ichiro Yoshizawa made the second ascent, and Ashraf Aman became the first Pakistani climber on the summit.
• 1978: an American team opened the northeast ridge, with Louis Reichardt, Jim Wickwire, John Roskelley, and Rick Ridgeway reaching the top.
• 1979: Reinhold Messner reached the top by the Abruzzi Spur.
• 1986: Wanda Rutkiewicz of Poland became the first woman on top on June 23, and both the Magic Line and the Polish Line on the south face were climbed that summer.
• 2007: a large Russian team completed the steep west face.
• 2018: Andrzej Bargiel of Poland made the first complete ski descent from the summit to base camp, on July 22.
• 2021: ten Nepali climbers, led by Nirmal Purja and Mingma Gyalje Sherpa, completed the first winter ascent on January 16. Purja was the only one of the ten without supplemental oxygen.
• 2021: in July, the Pakistani mountaineer Shehroze Kashif reached the top at 19, becoming the youngest person to stand on K2.
• 2022: 145 people reached the top in a single day, part of about 200 that season.

The long race for a winter ascent

Winter was the last great challenge on the 8,000 meter peaks, and K2 held out longest. Polish climbers, famous for their winter mountaineering in the Himalaya, led most of the early efforts, and the Polish school of winter climbing made K2 its great goal. In 1987 and 1988, an international expedition led by Andrzej Zawada, with Polish, Canadian, and British members, reached Camp 3. In the winter of 2002 and 2003, an international group from Poland, Kazakhstan, Uzbekistan, and Georgia reached Camp 4. A Russian team tried again in 2011 and 2012.

The Polish expedition of 2017 and 2018, led by Krzysztof Wielicki, made one of the most determined attempts on the normal routes, but February storms and the cold forced the team home. In February 2018, the international star Denis Urubko even left the group for a solo push that ended in retreat, a sign of how difficult the winter climb had become. Finally, in late December 2020 and January 2021, several teams shared base camp: an international commercial expedition, a team led by Nirmal Purja, and a team led by Mingma Gyalje Sherpa. The Nepali climbers joined forces, fixed the route through the Bottleneck, and walked to the summit together in mid January, on January 16, 2021, singing their national anthem a few meters below the top. Winter on the mountain brings temperatures far below freezing and hurricane force winds, so the success marked a historic day for Nepali mountaineering. For other big stories from the world of alpinism, read our profile of Jon Krakauer and his Everest books, and our history of Fitz Roy in Patagonia.

K2 routes

K2 has a dozen or so established routes, but almost every ascent uses one of two. About 75 percent of climbers follow the Abruzzi Spur on the southeast ridge, and most of the rest use the Cesen route, which joins it high on the mountain. Both are sustained and committing.

The Abruzzi Spur route

The Abruzzi Spur rises on the southeast ridge from an advanced base camp at about 5,400 meters. It climbs a long buttress of rock and snow with several famous obstacles, and parties usually set four camps along the way. House's Chimney, a narrow crack named after Bill House of the 1938 American team, leads to the second high tent site and then to the Black Pyramid, a steep band of dark rock that is the most technical section of the lower route. Above the Black Pyramid, the route crosses snow slopes to the Shoulder, where the last camp usually stands, then enters the Bottleneck, a narrow couloir beneath a wall of hanging seracs.

The traverse below that ice cliff is the most exposed step of the whole climb, and teams try to pass it quickly in the early hours of summit day. From the top of the Bottleneck, a final snow slope leads to the summit. On summit day, the climb from the Shoulder to the top and back can take more than 15 hours, so the time to turn around is the most important decision of the day. The Abruzzi Spur route is fully fixed with ropes in most seasons today, but the slope angle, rockfall, the difficult terrain, and the altitude still make it serious. Teams spend many hours above 8,000 meters, in what mountaineers call the death zone, where the air holds about a third of the oxygen found at sea level. As on Mount Everest, the death zone limits how long anyone can stay up there, and most of the serious accidents on the mountain happen there, often on the descent. Respecting the death zone means climbing fast, carrying enough oxygen, and keeping a strict turnaround time.

The Cesen route

The Cesen route follows the south southeast spur on the south face and joins the Abruzzi at the Shoulder. Many guided teams prefer it because it avoids House's Chimney and the Black Pyramid and is considered less exposed to falling stones, although it shares the Bottleneck higher up. The terrain is demanding but less technical in its lower part, and the ground above the Shoulder is the same for both routes.

Other routes

• Northeast ridge: a long, corniced ridge first climbed by an American team in 1978.
• North ridge: on the Chinese side, very remote and rarely attempted.
• Magic Line: the southwest pillar, one of the most difficult and sought after routes on the peak.
• Polish Line: a direct and dangerous route up the south face, rarely repeated.
• West face: a vast wall of rock and ice climbed by the Russian team in 2007.

The trek to K2 base camp

Getting to the foot of the peak is an adventure in itself. Most parties fly to Islamabad, the capital of Pakistan, then fly or drive to Skardu, the main town of Gilgit Baltistan, then drive by jeep to Askole. From there, the trek to base camp takes about a week on foot. The trail climbs the Braldu valley to the snout of the Baltoro Glacier, one of the longest glaciers outside the polar regions, and follows it past granite towers to Concordia, where several glaciers meet below K2, Broad Peak, and the Gasherbrum group. Base camp sits on the glacier at about 5,000 meters, and in summer it becomes a busy village of tents.

Many trekkers walk to Concordia and the foot of the peak without any plan to go higher, and the trek to Concordia is often called one of the great treks in Pakistan. Most people trek in July and August, and the return takes a few days less than the way in. The walk is long and remote but non technical, and it offers one of the most dramatic mountain views on the planet. You need good boots, layers for cold nights, and a trekking permit from the Pakistani authorities, usually arranged by a local operator in Gilgit Baltistan. Expeditions that go higher need a climbing permit from the government of Pakistan, also arranged through a licensed operator. Local porters carry most of the loads, and their knowledge of the glacier is part of what makes the trek possible. Our approach shoe buying guide and our guide to choosing a sun and cold hat cover useful items for long glacier days.

K2 weather and climbing season

The weather decides everything on K2. The main season runs from late June to August, when temperatures are least severe and the jet stream usually sits farther north. July is the busiest month, and most summit pushes happen late in the month or in the first weeks of August. Even then, storms can arrive fast and last for days, and teams wait below for a short window of calm. A good weather forecast is as important as fitness.

By late August or September, the summer expeditions have gone home, and by November the Baltoro Glacier is almost empty. In November, early snow closes the passes, and the winter teams do not arrive until December. Winter weather there is extreme, with hurricane force winds and temperatures far below anything climbers face in summer. That is why winter teams arrive in December or January and wait through February for a rare break, since February often brings the coldest days. The month by month pattern looks like this:

• June: teams arrive, set up their tents, and begin acclimatization rotations.
• July: the main climbing month, with the most stable weather and the busiest trail.
• August: the last summit window for most expeditions, often closed by early autumn storms.
• November: the valley is quiet, and the trek is closed by cold and snow. A few international teams use November to ship gear for winter, and by the end of November the glacier is snowbound.
• January and February: the heart of the winter season, reserved for the most committed teams. February is often the coldest and windiest month, and everyone watches the forecast for a rare calm day.

What it takes to climb K2

Experience

K2 is not a first big objective. Guided operators typically ask for previous ascents above 8,000 meters, often including peaks in Nepal, plus years of climbing experience on steep snow, ice, and mixed terrain. You must be comfortable with jumars on fixed ropes, rappelling, crampon technique on hard ice, and moving efficiently with a heavy pack on difficult ground. If you are still building those skills, start with our introduction to rock as a sport, our beginner guide to trad, and our glossary of terms. Learn your knots too, starting with the figure eight tie in.

Building up to K2

Very few climbers go straight to K2, and no responsible operator will take you to climb it without a long record. A common progression for American climbers starts with glacier courses on Mount Rainier or Mount Baker in Washington, then winter ascents of Mount Shasta, then Denali in Alaska. Many add Mount Kilimanjaro or Mount Elbrus as first high altitude trips, and Aconcagua for long days at altitude. After that, they attempt a first 8,000 meter peak such as Cho Oyu or Manaslu, then Mount Everest, before they climb K2, often after a second 8,000 meter peak. Mount Hood in Oregon and Mount Washington in New Hampshire are popular winter training grounds too. In New Zealand, Mount Cook offers serious alpine ridge climbing that many international guides use as training. Each step adds altitude, technical climbing, and the experience of long expeditions, and many American guides follow the same ladder with their clients.

Fitness and acclimatization

Endurance is the main physical limit. A typical attempt lasts six to eight weeks, with several rotations between base camp and the higher camps to adapt to high altitude before the summit push. Altitude sickness can stop even very fit people, so the pace of acclimatization matters more than raw strength. Preparation means months of uphill training with load, long days on foot, and strength work for the legs and core. Our uphill workout plan explains how to build that base, and our endurance training methods cover sustained effort. Food matters as much as fitness on a long trip, and our nutrition guide for performance and recovery explains how to fuel it.

Grip strength

On a big mountain, you hold fixed ropes, ice tools, and cold rock for hours with thick gloves. Strong fingers and forearms keep you secure late in the day when you are tired, especially on technical terrain like House's Chimney and the Black Pyramid. A few short fingerboard sessions each week on large, comfortable edges build that capacity without taking time from your aerobic work. Our safe hangboard progressions explain how to start, and a structured training plan for every level ties the whole program together. Protect your skin and joints too with our hand care guide.

Gear

The kit for an 8,000 meter peak includes double boots, an expedition down suit, technical crampons, an ice axe, a harness, a helmet, jumars, and gloves in several weights. See our mountaineering gear checklist for a full list, and our ice gear guide for crampons and tools. The history of the piton also shows how hardware shaped early alpinism.

Sherpa teams and commercial expeditions

For decades, K2 saw only a few small, independent expeditions each summer. Since the 2010s, commercial operators led by Nepali Sherpa guides, who built their reputation on Mount Everest, have changed that. Sherpa guides from Nepal now dominate the work of fixing ropes, and a Sherpa guide often climbs beside each client. Sherpa teams fix ropes all the way up, stock the upper tents with oxygen, and lead clients through the Bottleneck on summit day. Pakistani high altitude porters from the villages of Baltistan also play a growing role, and several of them have now reached the top themselves. The record summer of 2022 showed how much access has grown, with lines of climbers in the Bottleneck. At the same time, the core difficulty has not changed: the weather, the steep terrain, and the altitude remain the same, and every season still brings hard decisions about when to turn back.

Conclusion

K2 is a mountain of superlatives: the second highest summit on Earth, in the Karakoram range of Gilgit Baltistan, in northern Pakistan, the hardest and most remote of the great 8,000 meter peaks, and the setting for some of the most dramatic stories in mountaineering, from the 1954 Italian first ascent to the 2021 winter ascent by a Nepali team. Mount Everest may be higher, but most mountaineers consider K2 the greater climbing challenge. Most people will see it only from Concordia at the end of a long trek, and that view alone is worth the journey. For those who dream of climbing higher, the route runs through years of alpine experience, careful acclimatization, and a long training program built on endurance, strength, and grip.

FAQ

Is K2 in the Himalayas?

Not strictly. K2 is in the Karakoram Range, which lies northwest of the main Himalaya. Many people call it a Himalayan peak because the two ranges belong to the same great system of high mountains in Asia.

How tall is K2?

K2 is 8,611 meters (28,251 feet) above sea level. It is the second highest mountain in the world, 238 meters lower than Mount Everest.

Who first climbed K2?

Lino Lacedelli and Achille Compagnoni of the Italian expedition led by Ardito Desio reached the summit on July 31, 1954, by the Abruzzi Spur.

Why is K2 called the Savage Mountain?

The nickname comes from George Bell of the 1953 American expedition, who described it as a savage mountain that tries to kill you. Its steep terrain, severe weather, and high death rate kept the name alive, even though the rate has fallen in recent years.

Can you trek to K2 base camp?

Yes. The trek from Askole along the Baltoro Glacier to Concordia and base camp takes about a week each way. It is non technical but long, remote, and cold, so you need good fitness and a permit.