Why Manaslu is called killer mountain?

Manaslu is called the “Killer Mountain” because it has one of the highest fatality rates among the 8,000 m peaks in the world, with approximately 9 deaths per every 100 successful summits and over 89 confirmed climber deaths since its first ascent in 1956.

Standing at 8,163 m as the eighth-highest mountain in the world, Manaslu is not the tallest peak in Nepal. But the occurrence of unpredictable avalanches, violent weather, and dangerous terrain has made it one of the deadliest mountains on Earth. The Manaslu Circuit Trek is a well-known trekking route in Nepal, prized for its remote and less-crowded experience.

What Does Manaslu Mean?

The name Manaslu comes from the Sanskrit word manasa, meaning “intellect” or “soul,” which is why local Tibetan communities also call it the “Mountain of Spirits”. There is a sad irony in this name. A mountain seen as a place of spiritual power has taken the lives of many skilled climbers who underestimated it.

Located in the Mansiri Himal range above the Budhi Gandaki Valley in Gorkha and Manang districts of Nepal, the mountain was first summited on May 9, 1956, by Japanese climber Toshio Imanishi and Gyalzen Norbu. Before this success, many attempts had failed. Japanese teams kept returning again and again until they finally reached the summit.

Because of this connection, people say, “Just as the British see Everest as their mountain, Manaslu has always been a Japanese mountain.”

What Makes Manaslu So Deadly? 

What makes Manaslu so deadly is heavy snowfall, avalanches, unpredictable weather, and dangerous crevasses that can trap even experienced climbers. Its sheer hillsides and remote location also make rescue efforts very difficult and slow. Below, we have explained these dangers clearly.

Avalanches and Icefalls

The biggest danger on Manaslu is avalanches, mainly caused by a huge ice formation called the Manaslu Serac. This large block of ice hangs over the mountain, and climbers going from Camp 3 to Camp 4 must pass directly below it, with no way to avoid it. It can break without warning by sending massive amounts of ice and snow crashing down onto the camps.

This becomes even more dangerous because avalanches often happen at night or early in the morning, when climbers are asleep in their tents. This means they are most at risk at the exact time when they cannot react or escape.

Inconsistent Weather Conditions

Manaslu is in a part of the Himalayas where the weather can change very quickly. It can become extremely cold, winds can go over 100 km/h, and storms can arrive without warning. The short climbing seasons in spring and autumn can suddenly close, and even experts find the weather hard to predict.

For climbers going for the summit from Camp 4, the weather can look clear at night but turn dangerous within a few hours. If this happens above 7,500 m, it can become very serious and life-threatening.

Advanced Terrain and Glacier Fracture Zones

The climb to Manaslu’s summit is not seen as the hardest among the 8,000-meter peaks, but that perception has contributed to deaths. Some climbers underestimate the mountain because it seems easier than peaks like K2 or Annapurna and come unprepared.

The route still has large crevasse fields to cross, steep ice and varied terrain to climb, and places where one slip can be deadly. These hazardous glacier zones need careful movement, proper equipment, and constant awareness.

Altitude and Acute Mountain Sickness

At 8,163 m, Manaslu puts climbers in the death zone, where the body cannot adjust to the altitude and starts to break down. Climbers face constant risks of acute mountain sickness, high-altitude pulmonary edema (HAPE), and high-altitude cerebral edema (HACE).

Because Manaslu is far away in Gorkha, helicopter rescues from high camps are delayed by bad weather, which can turn treatable problems into life-threatening situations.

The Deadliest Moments in the History of Manaslu

Manaslu has a long history of deadly climbs, with avalanches, falls, and storms taking the lives of many climbers. Some of the worst tragedies happened when the Manaslu Serac collapsed and when bad weather struck climbers above 7,500 m. Below, we have explained these moments clearly.

The 2012 Avalanche Disaster

The deadliest event in Manaslu history happened on September 23, 2012. Early in the morning, an avalanche hit Camp 3 while climbers were sleeping. It destroyed about 25 tents and swept several climbers down the mountain. 11 people died, with some reports saying up to 13, including climbers from France, Germany, Italy, Spain, and Nepal. Three bodies were never found and are still buried under the snow.

One expedition report described it as “a tragic loss,” saying that survivors were hurt and stuck on the mountain, and they needed help while avalanches kept happening. The 2012 disaster is still the deadliest day on Manaslu.

The 2022 Season

Ten years after the 2012 disaster, Manaslu showed again how dangerous it can be. On September 26, 2022, an avalanche near Camp 4 killed at least one climber and seriously injured about 12 others.

That season also saw the death of Hilaree Nelson, a world-famous ski mountaineer, who fell into a crevasse while descending. Her passing shocked climbers around the world and showed that even experience and preparation cannot guarantee safety on Manaslu.

1972 South Korean Expedition Avalanche

On April 10, 1972, a big avalanche hit Camp III of a South Korean expedition on Manaslu, at about 6,500 m. The avalanche happened just after midnight while climbers were sleeping. The disaster killed 15 people, including 4 Koreans, who were the expedition leader Kim Ho-sup, 1 Japanese climber, Kazunari Yasuhisa, and 10 Nepalese Sherpas.

Only three people at Camp III survived: Kim Yae-sup, the 21-year-old brother of the leader, and two Sherpas. They were swept almost 800–1,000 m down the mountain but managed to dig themselves out. Seven other expedition members survived because they were not at Camp III when the avalanche struck.

1983 Spanish Expedition Disappearance

In 1983, a Spanish expedition from Catalonia tried to climb the Northeast Face of Manaslu. Although not as widely known as the 1972 or 2012 disasters, this climb ended tragically and became part of the deadly mountain history.

During the expedition, two experienced climbers, Pere Aymerich and Enric Font, were caught in an avalanche while descending from a summit attempt. Both disappeared high on the mountain, and their bodies were never recovered.

Notable Milestones in Manaslu History

Manaslu has a history of mountaineering achievements, from first ascents to record-breaking climbs. Here are some of the most notable milestones:

• British explorer H.W. Tilman and J.O.M. Roberts conducted the first modern survey of the mountain in 1950
• On 9 May 1956, Toshio Imanishi (Japan) and Gyalzen Norbu Sherpa reached the summit for the first time
• A Japanese women team led by Kyoko Sato became the first women to ever summit an 8,000 m in May 4, 1974
• The legendary Reinhold Messner completed a solo climb of the toughest south-west face in 1972
• On January 12, 1984, Polish climbers Maciej Berbeka and Ryszard Gajewski became the first to summit Manaslu in winter at -30°C

Survivor Stories from Manaslu Tragedy

Here are some stories from the 1972 and 2012 Manaslu disasters.

• Kim Yae-sup (1972 survivor): The 21-year-old Korean climber was awake after midnight, making tea when he heard a thunderous roar. Within seconds, the avalanche swept him and his companions about 800–1,000 m down the mountain.
• Glen Plake (2012 survivor): The American freeskier was reading in his tent when he heard a loud roar he thought was wind. An avalanche then swept him 300 m over an ice ridge, but he survived inside his sleeping bag. Sadly, his climbing partners, Rémy Lécluse and Greh Costa, went missing.
• Jim Morrison (2022 survivor): After reaching the summit with Hilaree Nelson, Morrison skied first and saw Nelson trigger a small avalanche that swept her down a 5,000-foot slope. Morrison safely reached base camp and spent two days searching from the air before finding her body.

Permits Required for the Manaslu Circuit Trek

Many climbers who attempt Mount Manaslu also do part of the Manaslu Circuit Trek. Because the area is remote and at high altitude, they must get special Manaslu Circuit Trek permits. Here’s a simple table showing the main permits and their costs in USD. 

Why You Should Not Fear Manaslu?

Many people fear Manaslu because of its deadly reputation, but modern climbing improvements and support have made it much safer than in the past. Here are some reasons you don’t need to fear Manaslu:

• Fixed Rope to True Summit – Recent expeditions use fixed ropes to safely reach the actual summit by avoiding the dangerous fore-summit.
• Better Weather Forecasting – Accurate satellite weather forecasts help climbers choose the safest time to move and avoid sudden storms.
• Rapid Rescue Options – Helicopters can now evacuate injured climbers from Base Camp and even higher camps quickly.
• High Summit Success Rate – Manaslu has one of the highest success rates among 8,000 m peaks.
• Experienced Sherpa Support – Many climbers have 1:1 Sherpa support to handle logistics and carry oxygen.
• Less Technical Difficulty – The standard route has long snow slopes, so it is easier compared to mountains like K2 and Annapurna.

Manaslu vs Other Killer Mountains

Between 1956 and 2022, about 89–90 climbers have died on the mountain. Out of roughly 2,172 attempts to reach the summit, only around 60% succeed, and if climbers use supplemental oxygen, the success rate drops to about 50%. 

By May 2008, there had been 297 successful summits and 53 deaths. A fatality rate of about 17.85%, making Manaslu the fourth deadliest 8,000-meter peak after Annapurna, Nanga Parbat, and K2. By 2012, the death toll had risen to 64 out of 672 summit attempts. The table below gives more information clearly.

Plan Your Manaslu Adventure & Trek the Killer Mountain’s Shadow 

Mount Manaslu is one of the most amazing but dangerous peaks, with a history full of daring climbs, deadly avalanches, and the high-risk “death zone.” Its reputation as “why Manaslu is called killer mountain” is real, but modern safety measures, experienced guides, better forecasting, and well-organized expeditions have transformed it into an achievable adventure. 

Manaslu Circuit Trek

14 Days

Manaslu Circuit Trek

$920

5.0(7 reviews)

The Manaslu Circuit Trek is a stunning 13-18 day teahouse trek in Nepal, circling the world’s 8th highest mountain (Manaslu 8,163m), and covers about 144KM (89 Miles). The trek journey starts at Machha Khola and slowly climbs through farmlands and small villages. As you move higher, you reach mountain valleys like Samagaon and Samdo. The biggest highlight is crossing the Larkya La Pass (5,160M), where you can see amazing views of Manaslu, Himalchuli, and Ngadi Chuli. The trek also offers a local culture experience. Villages such as Samagaon, Namrung, Lho, and Deng show strong Tibetan traditions. You will see monasteries, prayer flags, and mani walls along the way. Depending on the season, you may also witness festivals like Lhosar (Tibetan New Year) or Saga Dawa, which celebrates Buddha’s life. In these villages, people farm millet, herd yaks, and live in ways passed down for centuries. This gives trekkers a close look at a culture that is still very traditional. The Manaslu Circuit trek trail also takes you through different natural landscapes. In the lower region at Jagat and Soti Khola, you will walk through green forests alive with rhododendron, magnolia, and bamboo. As you go higher past Philim, Namrung, and Samdo, the forest changes into oak, maple, and conifers, with waterfalls along the way. Near Samagaon and Larkya La, the land becomes rocky and snowy, with only small plants like moss and lichens. The changing landscape offer the true trekking experience throughout the Manaslu Circuit trek. Likewise, one special thing about the trek to Manaslu Circuit region is that it is a restricted area. Trekkers need special permits, which help protect the environment and keep the trail less crowded. You will need to compulsorily hire a trekking guide. You can find simple teahouses and lodges in main villages, but the trek still feels wild and quiet compared to other popular routes in Nepal. The best time for Manaslu Circuit trek is during the Spring (March to May) and Autumn (September to October) seasons.

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Manaslu Tsum Valley Trek

20 Days

Manaslu Tsum Valley Trek

$1,330

The Manaslu Tsum Valley Trek is an adventure around Mount Manaslu, the world’s eighth-highest peak at 8,163 meters (26,781 feet). This trek takes you through the scenic Manaslu Conservation Area and into the remote Tsum Valley, close to the Tibetan border. For 20 days, trekkers travel through serene pine forests, rhododendron jungles, and challenging trails leading up to the Larkya La Pass with majestic mountain views. The trek features high-altitude lakes, unique wildlife, and ancient Buddhist monasteries, with altitudes above 3,000m and 5,000m (16,404 feet) respectively. Along the way, you’ll discover a rare blend of Nepali and Tibetan culture, language, and traditions that make this region truly special. You will climb through Gurung villages with rice and millet terraces and cross many Buddhist shrines, especially in the Tsum Valley, which also has a similar culture to Tibetans. Tsum Valley, located near the Tibetan border, offers opportunities to encounter Buddhist monks and explore Milarepa’s Cave. You can also view Nepal’s national bird, the Lophophorus, against majestic landscapes of Mount Manaslu and Himalayan ridges like Hiunchuli and Annapurna II. The Manaslu Tsum Valley trek is ideal for adventure-seekers, but beginners with strong bodies and amazing stamina can also experience this. Just make sure that you are physically fit, if you are planning to take up the trek.

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