Derived from the sanskrit word 'manasa' meaning 'intellect', manaslu signifies the mountain of spirits. Standing at an elevation of 8156 m above sea level, this mountain is the world's eighth highest mountain. The mountain was successfully summitted by a Japanese expedition led by Toshio Imanishi and Gyalzen Norbu. Located in the Lamjung District of Gandaki Zone forty miles east of Annapurna, is also known as a Manaslu Conservation Area bordering Tibet.
The mountain is covered in snow above 5000 meters throughout the year. The temperatures in the area varies widely with the climatic zone: in the subtropical zone, the average summer and winter temperatures varying 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). best time around the year to visit would be in March to May in the spring and September to Mid-December during the autumn season.
The Manaslu Conservation Area is the habitat for more than 110 species of birds, 33 mammals, 11 butterflies, 3 reptiles the most important of them being the highly endangered snow leopards and Pandas and other mammals like Lynx, Himalayan Black Bear, Grey Wolf, Dhole, Assamese Monkey, Himalayan Musk Deer, Blue Sheep, Himalayan tahr, Mainland Serow, Himalayan Goral, Wooly Hare, Horseshoe Bat, Himalayan House Hare, Black Lipped Pika 1,500-2,000 plant species including Blue Pine, the national Flower Rhododendron,various medicinal and aromatic herbs and plants 110 species of birds have been identified as native to the area, including golden eagle, Eurasian griffon, Himalayan griffon, kalij and koklass pheasants, tibetan snow cock and the crimson horned pheasant.
Nubri and Tsum are the two major inhabiting ethnicities in the region divided by the Chhikur river. The Gurung community have been native to the central hilly regions as the main ethnic group while Bhutias also known as Bhotias extend closer to Tibet much alike the Sherpas sharing almost the same cultural diversity that can be seen in their flat roofs, buddhist influence, monasteries, chhortens and an overall Buddhist blend.
The Manaslu region holds a great prospect of trekking sites extending as large as 177 kms. The two major trekking sites of the region are Tsum valley Trek traversing through the Tsum Valley and Manaslu Area of Nepal and southern parts of Tibet and, Larkya-La pass which happens to be one of the widest pass.