Pasang Lhamu Chuli (Nagpai Gosum) Expedition

Glimpse of Expedition

Elevation: 7126m
Region: Khumbu region
Climbing Season: Spring
Route: Kathamndu-Lukla-Namche-Pasang Lhamu chuli
Best season: Late Sept. to Oct. & April to May.

Duration:  49days

Pasang Lhamu Chuli

Pasang Lhamu Chuli goes by three other names: Jasumba, Cho Aui and Nagpai Gosum Peak. The first recorded summit to the peak was in 1986 by a Japanese team from the northern Tibetan side gaining the prominent North West ridge to the summit. In 2009, a Swiss team consisting of three young mountaineers reached the top of Nagpai Gosum through the southern face, which no one had climbed before. The standard route begins from with trekking from Lukla and via Namche Bazar passes through the pass Nagpa La. Nagpa La is an important route for the Tibetan refugees fleeing Tibet. The Base Camp lies on Sumna Glacier at an altitude of 5,100 meters. Mount Nagpai Gosum or the Pasang Lhamu Chuli lies in the Cho Oyu massif about six kilometres west of Mount Cho Oyu. In fact, Mount Nagpa Gosum is the highest of three 7000m-peaks in the south-western ridge of Cho Oyu (8201m). The impressive north-face of Nagpa Gosum with its white "spider" can also be seen from the Gyabrag-glacier above Cho Oyu Base Camp.

The Pasang Lhamu Chuli or Nagpa Gosum Base Camp lies on Sumna Glacier at an altitude of 5,400 meters one hour from the traditional yak caravan route from Tibe to Namche Bazar over Nangpai La. Advanced Base Camp at 5600 m at the foot West Ridge Nampa La. Two more camps will be set up as we climb higher. Camp I at 6,250m just below the second Col. Camp II at 7,100m on the snow hump. After a few pitches climbing up steep snow ridge, reach the summit made of ice pyramid with hardly enough space to stand on it. From the summit, savor the astonishingly close view of Everest and other high peaks, then rappel down and get back to Base Camp the next day.

Pasang Lhamu Chuli (Nagpai Gosum) Expedition - Itinerary:

Day 01: Arrive at Kathmandu airport, transfers to the selected hotel.  
Day 02-03: Kathmandu Sightseeing & Preparation for the Expedition
Day 04: Fly to Lukla. Trek to Phakding Overnight guest house.
Day 05: Trek to Namche. Overnight guest house.
Day 06: Rest & Acclimatization at Namche
Day 07: Trek to Thame. Overnight guest house.
Day 08: Trek to Arye. Overnight in tents.
Day 09: Trek to Lunak. Overnight in tents.
Day 10: Trek to Khajung. Overnight in tent.
Day 11: Trek to Jagsamba (Pasang Lhamu Chuli Base Camp). Overnight in tents.
Day 12 - 42: Climbing period
Day 43: Retrace to Lunak. Overnight tents.
Day 44: Trek to Thame. Overnight guest house.
Day 45: Trek to Namche. Overnight guest house.
Day 46: Trek to Lukla. Overnight guest house.
Day 47: Fly to Kathmandu. Overnight tents.
Day 48: Free day in Kathmandu. Overnight hotel.
Day 49: Transfer to airport for your final departure to home.

Note:The above information is a guide and standard template of what we provide. The trek can be customized at your request to accommodate your specific requirements. On adventure trips of this type, weather, transport or a multitude of other factors beyond our control can result in a change of itinerary. It is, however, very unlikely that the itinerary would be substantially altered; if alterations are necessary the leader will decide what is the best alternative, taking into consideration the best interests of the whole group. Where a change does occur, we do everything we can to minimize its effect, but we cannot be responsible for the results of changes or delays.

Trip Cost

Cost: Please contact us.

Cost includes:

  • Equipment allowance, daily allowance & insurance for base camp staffs.
  • Flights to transfer climbing members, staff, liason officer and cargo of the climbing gear.
  • Food and fuel at the base camp
  • All camping equipment at the base camp such as, member tent, dining tent, kitchen tent, chairs, tables.
  • Trek support for climbing members from Lukla-base camp-Lukla.
  • Porters to carry loads from Lukla-base camp-Lukla
    Royalty and peak permit
  • Airport arrival and departure
  • Accommodation in Kathmandu on bed and breakfast basis.

Cost Excludes

  • High altitude food and fuel above base camp.
  • Climbing equipment, tents and personal equipment above base camp
  • Personal accident insurance and emergency rescue operation

Why choose us?

Mission Eco Trek aware that there are many companies seeking your business as you plan your adventure holidays in the Nepal Himalayas. We believe we offer the very best value for money and take your safety, comfort and ultimate holiday experience very seriously.

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Further Information

Our homepage contains as much information as possible about this trip. However, if you have any questions regarding trip, please feel free to contact us. We answer all enquiries within 24 hours. If you want to book a trip, you can send us an email or contact us directly by phone: 0977 98510 23742 (Jitendra), 0977 98510 23758 (Thakur).


Mission Eco Trek is professionals at operating at high-altitude. Each trip we run has a realistic acclimatization programme. Our entire adventure trips are designed to allow gradual height gain, spread over a number of days. High altitude is not predictable sickness, so there is no way of predicting who will suffer from altitude but, for the vast majority of people, a slow ascent to height will produce minimal effects. We can provide 'Gamow Bag' as a precautionary measure as per your request on renting basis. Acclimatizing takes time and there are no safe shortcuts. All trips to altitudes in excess of 3,000 meters carry medicines essential to the treatment of altitude sickness, and our leaders, guides and staffs are well trained to administer them and to know the symptoms.

Check out "Altitude illness" by Dr Jim Duff

Contact Address

Mission Eco Trek & Expedition

P. O. Box: 19795, Thamel, Kathmandu, Nepal

Tell.: 00977-1- 4442922
Fax: 00977-1- 4442944