Lhagba La on:
[Wikipedia]
[Google]
[Amazon]
Lhagba La or Lhakpa La (meaning "Windy Gap") is a col about northeast of 
Mount Everest
Mount Everest (; Tibetan: ''Chomolungma'' ; ) is Earth's highest mountain above sea level, located in the Mahalangur Himal sub-range of the Himalayas. The China–Nepal border runs across its summit point. Its elevation (snow heig ...
in the Tibet Autonomous Region
The Tibet Autonomous Region or Xizang Autonomous Region, often shortened to Tibet or Xizang, is a Provinces of China, province-level Autonomous regions of China, autonomous region of the China, People's Republic of China in Southwest China. I ...
.
It was unknown to local inhabitants until it was discovered and named by the 1921 British Mount Everest reconnaissance expedition when reconnoitring a route to climb the mountain.*
Lhagba La is the starting point of the Kharta Glacier which descends eastwards along the valley towards Kharta. The Kharta River is a tributary of the Arun River
The River Arun () is a river in the English county of West Sussex. At long, it is the longest river entirely in Sussex and one of the longest starting in Sussex after the River Medway, River Wey and River Mole. From the series of small stream ...
. On the western side of the col is the East Rongbuk Glacier
The Rongbuk Glacier () is located in the Himalaya of southern Tibet. Two large tributary glaciers, the East Rongbuk Glacier and the West Rongbuk Glacier, flow into the main Rongbuk Glacier. It flows north and forms the Rongbuk Valley north of Moun ...
which flows north from Everest. Lhagba Pool
The Lhagba Pool was a high altitude lake considered to exist, but an examination of evidence, including satellite photos leads to a conclusion that it has dried out. It was considered the highest lake in Tibet and the second highest lake in the wor ...
, below and less than southwest, is reportedly the second highest lake in the world.
Expeditions attempting Everest via the North Col __NOTOC__
The North Col (; ) refers to the sharp-edged pass carved by glaciers in the ridge connecting Mount Everest and Changtse in Tibet. It forms the head of the East Rongbuk Glacier.
When climbers attempt to climb Everest via the North ridge ...
generally arrive up the East Rongbuk Glacier and so do not reach Lhagba La at all. However, when George Mallory
George Herbert Leigh Mallory (18 June 1886 – 8 or 9 June 1924) was an English mountaineer who took part in the first three British expeditions to Mount Everest in the early 1920s.
Born in Cheshire, Mallory became a student at Winchester ...
and Guy Bullock
Guy Henry Bullock (23 July 1887 – 12 April 1956) was a British diplomat who is best known for his participation in the 1921 British Mount Everest reconnaissance expedition. As expedition mountaineers, he and George Mallory found a northern acc ...
were trying to reach the North Col, the route from Rongbuk was unknown to them. Instead they approached from the east only to find the glacier did not extend to the North Col. The climbing team eventually had to cross the pass and descend some to the East Rongbuk Glacier before ascending to the North Col. Their discovery allowed the 1922 British Mount Everest expedition to take the more direct route from the north.
The well known Yeti footprints were found in this region for the first time in the world probably at the beginning of 19th century. Later it came up into the light through the media. This mystery of "Yeti" is still unsolved.
References
Mount Everest Mountain passes of the Himalayas Mountain passes of Tibet Mountain passes of China {{Tibet-geo-stub