Manaslu is the eighth-highest mountain in the world at 8,163 metres (26,781 ft) above sea level.

It is in the Mansiri Himal, part of the Nepalese Himalayas, in the west-central part of Nepal. The name Manaslu means “mountain of the spirit” and is derived from the Sanskrit word manasa, meaning “intellect” or “soul”. Manaslu was first climbed on May 9, 1956, by Toshio Imanishi and Gyalzen Norbu, members of a Japanese expedition. It is said that, given the many unsuccessful attempts by the British to climb Everest before Edmund Hilary, “just as the British consider Everest their mountain, Manaslu has always been a Japanese mountain”.

Manaslu Peak
Manaslu is the highest peak in the Gorkha District and is about 64 km (40 mi) east of Annapurna. The mountain’s long ridges and valley glaciers offer feasible approaches from all directions and culminate in a peak that towers steeply above its surrounding landscape and is a dominant feature when viewed from afar.

The Manaslu region offers a variety of trekking options. The popular Manaslu trekking route of 177 kilometres (110 mi) skirts the Manaslu massif over the pass down to Annapurna. The Nepalese Government only permitted trekking of this circuit in 1991. The trekking trail follows an ancient salt-trading route along the Budhi Gandaki River. En route, 10 peaks over 6,500 metres (21,325 ft) are visible, including a few over 7,000 metres (22,966 ft). The highest point reached along the trek route is the Larkya La at an elevation of 5,106 metres (16,752 ft). As of May 2008, the mountain had been climbed 297 times with 53 fatalities.

The Manaslu Conservation Area Project (MCAP) was established in 1997 with the primary objective of achieving conservation and sustainable management of the delimited area, which includes Manaslu.

Set in the northern Himalayan range in the Gorkha District of Nepal, Manaslu is a serrated “wall of snow and ice hanging in the sky”. The three sides of the mountain fall in steps to terraces down below, which are sparsely inhabited with agricultural operations practiced on the land. Apart from climbing Manaslu, trekking is popular in this mountain region, as part of the Manaslu Circuit, a notable path by trekkers in Nepal.

The Manaslu Conservation Area, declared as such in December 1998 under the National Parks and Wild Life Conservation Act, subsumes Manaslu within it. The area covered under the conservation zone is 1,663 square kilometres (642 sq mi) and is managed by the National Trust for Nature Conservation (NTNC) of Nepal. The status of “conservation area” applied to the Manaslu area or region was with the basic objective “To conserve and sustainable management of the natural resources and rich cultural heritage and to promote ecotourism to improve livelihood of the local people in the MCA region.”

Manaslu Himal, as it is popularly known among trekkers, provides views of the snow-covered mountains of the Himalayas and allows close interaction with the different ethnic groups who live in hill villages scattered along the trek route.

The trekking route is through mountainous terrain prone to the consequences of monsoon rainfall, land slides and land falls. Hypothermia and altitude sickness, as well as encounters with passing yaks, are common. Trekking to Manaslu is thus a test of endurance.

The region, which is also termed the Manaslu Conservation Area, comprises sub-tropical Himalayan foothills to arid Trans-Himalayan high pastures bordering Tibet. Starting from Arughat and extending into the Larkhe La pass, the area covers six climatic zones: the tropical and sub-tropical zone, elevation varies from 1,000–2,000 metres (3,300–6,600 ft); the temperate zone (within elevation range of 2,000–3,000 metres (6,600–9,800 ft); the sub-alpine zone elevation range of 3,000–4,000 metres (9,800–13,100 ft); the alpine zone, a range of 4,000–5,000 metres (13,000–16,000 ft)) meadows; and the arctic zone (lying above 4,500 metres (14,800 ft)). The zones coalesce with the variation of the altitude from about 600 metres (2,000 ft) in the tropical zone to the 8,156 metres (26,759 ft) summit of Manaslu in the arctic zone.

Manaslu is known in the Tibetan language as “Kutan l”, in which “tang” means the Tibetan word for a flat place. It is a very large peak with an elevation of 8,156 metres (26,759 ft) (the world’s eighth highest mountain). In view of its favourable topography of long ridges and glacial valleys, Manaslu offers several routes to mountaineers. Important peaks surrounding Manaslu include Ngadi Chuli, Himalchuli and Baudha. A glacial saddle known as Larkya La, with an elevation of 5,106 metres (16,752 ft), lies north of Manaslu. The peak is bounded on the east by the Ganesh Himal and the Buri Gandaki River gorge, on the west by the deep fissures of the Marysyangdi Khola with its Annapurna range of hills, to the south is the Gorkha town at the foot of the hill (from where trekking operates during the season), which is an aerial distance of 48 kilometres (30 mi) to the peak. There are six established trek routes to the peak, and the south face is reportedly the most difficult for climbing.

The permanent snow line is reckoned above 5,000 metres (16,000 ft) elevation. Precipitation in the area is both from snowfall and rainfall; the average annual rainfall is about 1,900 millimetres (75 in), mostly during the monsoon period, which extends from June to September. The temperatures in the area also vary widely with the climatic zone: in the subtropical zone, the average summer and winter temperatures vary in the range of 31–34 °C (88–93 °F) and 8–13 °C (46–55 °F) respectively; in the temperate climatic zone, the summer temperatures are 22–25 °C (72–77 °F) and winter temperatures are −2–6 °C (28–43 °F) when snow and frost are also experienced; in the subalpine zone, during December to May snowfall generally occurs and the mean annual temperature is 6–10 °C (43–50 °F). The arctic zone is distinct and falls within the permanent snow line; there, the temperatures lie much below freezing.

Major peaks
Major peaks of Mansiri Himal range (left to right): Manaslu, Ngadi Chuli, Himalchuli
There are other major peaks in the region, namely Himalchuli (7,893 m or 25,896 ft), Ngadi Chuli (7,871 m or 25,823 ft), Shringi (7,187 m or 23,579 ft), Langpo (6,668 m or 21,877 ft) and Saula (6,235 m or 20,456 ft)

Unlike many other regions, this valley is a sanctuary to many highly endangered animals, including snow leopards and red pandas. Other mammals include lynx, Asian black bear, grey wolf, dhole, Assam macaque, Himalayan musk deer, blue sheep, Himalayan tahr, mainland serow, Himalayan goral, woolly hare, horseshoe bat, Himalayan mouse-hare, and black-lipped pika. Over 110 species of birds, 33 mammals, 11 butterflies, and 3 reptiles have been recorded. Conservation of wild life in the area has been achieved by monks of the monasteries in the area by putting a hunting ban in place. This action has helped the wildlife to prosper. The area is now an important habitat for the snow leopard, grey wolf, musk deer, blue sheep, and the Himalayan tahr.

A total of 110 species of birds have been identified in the area, including golden eagle, Eurasian griffon, Himalayan griffon, blood, impeyan, kalij and koklass pheasants, Himalayan and Tibetan snow cocks, and the crimson horned pheasant.

Three main categories of vegetation have been identified in the area. These are categorised on the basis of the altitude as low hill, middle mountain, and high mountain types with its exclusive types of dominant forests and other associated species. The types of vegetation, however, tend to overlap the adjoining ones at places. Depending on the microclimate and other aspects, an overlap of vegetation is noticed in adjacent areas. However, the forest types are fairly well defined. The flora in different forest types also does not show much variation. The valley basin has a rich ecotone diversity and includes nineteen different types of forests, most prominently rhododendron, and also Himalayan blue pine, which is flanked by Ganesh Himal and the Sringi ranges. Medicinal herbs and aromatic plants, have also been recorded in different forests types and adjoining vegetation. Overall, the presence of 19 types of forests and other forms of dominant vegetation have been recorded from the area. An estimated 1,500–2,000 plant species grow here.

Ethnic groups
There are two ethnicities mainly inhabiting this region; Nubri and Tsum. The branching off of the river at Chhikur divides these two ethnic domains. While Nubri has been frequently visited after Nepal opened itself for the tourism in 1950, Tsum still retains much of its traditional culture, art, and tradition. In the central hills of the region, Gurungs are the main ethnic group who have joined the Brigade of Gurkhas in large numbers. Closer to Tibet, the Bhutias (also spelled Bhotias), akin to the Sherpa group, of Tibetan ethnicity dominate the scene as can be discerned from their flat roofed houses, and they are distinctly Buddhists. The region is dotted with austere monasteries, mani walls, chortens and other Buddhist religious landmarks.

Climbing history
In 1950, H. W. Tilman was the first European to lead an expedition to the Annapurna Range with a small party of five compatriots. They walked on foot from the Kathmandu valley (six days of trekking from the valley), and using Manang as their base camp they started exploring the mountain ranges, peaks and valleys of the Annapurna massif. During this exploration, while making a reconnaissance of the higher reaches of the Dudh Khola, they clearly saw Manaslu from Bumtang. Three months later, after their aborted trip to Annapurna IV, Tilman, accompanied by Major J. O. M. Roberts, trekked to Larkya La pass and from there saw Manaslu and its plateau and concluded that there was a direct route to the summit, although they did not make an attempt on it.

After the reconnaissance visit by Tilman, there were four Japanese expeditions between 1950 and 1955 that explored the possibility of climbing Manaslu by the north and east faces.

In 1952, a Japanese reconnaissance party visited the area after the monsoon season. In the following year (1953), a team of 15 climbers led by Y. Mita, after setting up base camp at Samagaon, attempted to climb via the east side but failed to reach the summit. In this first attempt by a Japanese team to summit via the north-east face, three climbers reached a height of 7,750 metres (25,430 ft), before turning back.

In 1954, a Japanese team approaching from the Buri Gandaki route to the peak faced a hostile group of villagers at Samagaon camp. The villagers thought that the previous expeditions had displeased the gods, causing the avalanches that destroyed the Pung-gyen Monastery and the death of 18 people. As a result of this hostility, the team made a hasty retreat to Ganesh Himal.[23] To appease local sentiments, a large donation was made to rebuild the monastery. However, this philanthropic act did not ease the atmosphere of distrust and hostility towards Japanese expeditions. Even the expedition in 1956 which successfully climbed the mountain faced this situation and as a result the next Japanese expedition only took place in 1971.

In 1956, Toshio Imanishi (Japan) and Gyaltsen Norbu (Sherpa) made the first ascent of Manaslu on May 9, 1956. The Japanese expedition was led by Maki Yūkō, also known as Aritsune Maki.

In 1956, David Snellgrove, a noted scholar in Tibetan culture and religion, undertook a seven-month sojourn of mid-west and central Nepal. The route that he followed, accompanied by three Nepalese people, was via Bumtang and Buri Gandaki river and crossing over to the Larkya La.

The next successful climb to the summit of Manaslu was in 1971. On May 17, 1971, Kazuharu Kohara and Motoki, part of an 11-man Japanese team, reached the summit via the north-west spur. Also in 1971, Kim Ho-sup led a Korean expedition attempt via the north-east face. Kim Ki-sup fell to his death on May 4. In 1972, the south-west face was climbed for the first time by Reinhold Messner as part of an Austrian expedition. In 1972, the Koreans attempted the north-east face. On April 10, an avalanche buried their camp at 6,500 metres (21,300 ft), killing fifteen climbers including ten Sherpas and the Korean expedition leader Kim Ho-sup, and Kazunari Yasuhisa from Japan. On April 22, 1973, Gerhard Schmatz, Sigi Hupfauer and a Sherpa climber reached the summit via the north-east face. In the same year, a Spanish expedition led by Jaume Garcia Orts could reach only to 6,100 metres (20,000 ft). The first Japanese women expedition led by Kyoko Sato was successful on May 4, 1974,[27] when all members reached the summit after a failed attempt from the east ridge. They thus became the first women to climb a peak higher than 8,000 metres (26,247 ft). However, one climber died on May 5 when she fell between camps 4 and 5.

In the pre-monsoon period of 1980, a South Korean team led by Li In-jung reached the summit via the normal route, which was the eighth ascent to the peak. The year 1981 marked several expeditions: the largest contingent of 13 climbers of a team organized by the Sport-Eiselin of Zurich led by H. V. Kaenel, made it to the summit along the normal route; in autumn, French mountaineers opened a new route, a variation of the west face route; and a Japanese team, led by Y. Kato, made an ascent via the normal route. In 1983, two climbers from Yugoslavia, trying to climb the peak from the south face, were buried under an avalanche. One of them was Nejc Zaplotnik, a notable climber of Slovenian origin. A Korean team reached the summit in the autumn of the same year. A German team led by G. Harter was successful in climbing the peak via the south face, which followed the “1972 Tyrolean Route”.

On May 10, 1983, four men from the Joint Services East Nepal Expedition made the first British ascent of Manaslu North using a totally new route, special permission from the Nepalese Government having been granted to access an area normally denied to Europeans; the team was led by Major Douglas Keelan of the Royal Marines and included members from the Royal Navy, Royal Air Force and Royal Marines.

During the winter of 1983–84, a Polish team led by L. Korniszewski successfully followed the Tyrolean Route. On January 12, 1984, Maciej Berbeka and Ryszard Gajewski of that expedition made the first winter ascent via the normal route.

In the spring season of 1984, a Yugoslav team led by A. Kunaver climbed the peak via the south face. During the same year, in autumn, Polish teams climbed the south ridge and south-east face.

On November 9, 1986, Jerzy Kukuczka, Artur Hajzer, and Carlos Carsolio made the first climb of the east summit (7894 m) of Manaslu.[5] The next day, Kukuczka and Hajzer reached the summit via a new route, ascending the east ridge and descending the north-east face.[21]

On May 2, 1993, Sepp Brunner, Gerhard Floßmann, Sepp Hinding and Dr. Michael Leuprecht reached the summit via the normal route and descended on skis from 7,000 metres (23,000 ft) to the basecamp. The Austrian expedition was led by Arthur Haid. On December 8, 1995, Anatoli Boukreev summited Manaslu with the Second Kazakhstan Himalaya Expedition. On May 12, 1996, Carlos Carsolio and his younger brother Alfredo, reached the summit of Manaslu. For Carsolio it was his fourteenth and final eight-thousander, becoming the fourth person in history and the youngest to achieve the feat. In 1997, Charlie Mace made the first American ascent.

During the spring of 2000, there were four expeditions to Manaslu. One climb was on the east face by the ‘Japan 2000 Expedition’ led by Yoshio Maruyama. The other three were on the north-east ridge: the ETB 2000 Expedition of Spain led by Felix Maria I. Iriate; the 2000 Korean Manaslu Expedition of Korea led by Han Wang Yong; and the Manaslu 2000 Expedition from Italy led by Franco Brunello. On May 22, 2001, a three-member team of Ukraine Himalaya 2001 Expedition comprising Serguiy Kovalov, Vadim Leontiev and Vladislav Terzyul successfully summited Manaslu via the challenging south-east face; all climbed without oxygen support. During the autumn of 2001, three members and a sherpa of the Japan Workers Alpine Federation climbed the peak via the north-east face on October 9, 2001.

On May 13, 2002, five Americans, Tom Fitzsimmons, Jerome Delvin, Michael McGuffin, Dan Percival and Brian Sato and two Sherpas reached the summit.

Piotr Pustelnik and Krzysztof Tarasewicz climbed Manaslu on May 17, 2003. However, Dariusz Zaluski, Anna Czerwinska and Barbara Drousek, who started the climb after Piotr and Krzysztof, had to turn back due to strong winds and bad weather. With this ascent Pustelnik had summited 12 on his way to summiting the world’s 14 highest peaks.

On May 29, 2006, Australian mountaineer Sue Fear died after falling into a crevasse on her descent after summitting. In 2008, Valerie Parkinson was the first British woman to climb Manaslu.

In 2011 Arjun Vajpai, an Indian mountaineer, summitted Manaslu on October 5 and became the youngest climber in the world to have summitted Manaslu at the age of 18.

Eleven climbers were killed in an avalanche on September 23, 2012.

On September 25, 2014, Polish ski-mountaineer Andrzej Bargiel set a record time from base camp to summit at 14 hours 5 minutes and also record time for base-peak-base of 21 hours 14 minutes.

Traditionally, the “spring” or ” pre-monsoon” season is the least hazardous for bad weather, snowfall, and avalanches. Manaslu is one of the more risky 8000ers to climb: as of May 2008, there have been 297 ascents of Manaslu and 53 deaths on the mountain,[11] making it “the 4th most dangerous 8000m peak, behind Annapurna, Nanga Parbat, and K2.”