Lhagba La

Lhagba La
Lhagba La
	Everest and North Col as seen from Lhagba La
Location	northeast of Mount Everest
Coordinates	28°02′30″N 86°57′29″E / 28.04167°N 86.95806°E
	Lhagba La

Lhagba La or Lhakpa La (meaning "Windy Gap") is a 6,849-metre (22,470 ft) col about 7 kilometres (4.3 mi) northeast of Mount Everest in the Tibet Autonomous Region.

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.^[1]^[2]^[3] 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. On the western side of the col is the East Rongbuk Glacier which flows north from Everest. Lhagba Pool, 500 metres (1,600 ft) below and less than 1 kilometre (0.62 mi) southwest, was reportedly the second highest lake in the world, but the lake has likely dried up.^[4]

Expeditions attempting Everest via the North Col generally arrive up the East Rongbuk Glacier and so do not reach Lhagba La at all. However, when George Mallory and Guy Bullock 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 460 metres (1,500 ft) to the East Rongbuk Glacier before ascending to the North Col.^[1] Their discovery allowed the 1922 British Mount Everest expedition to take the more direct route from the north.

Kharta, Tibet from Morshead's map showing routes taken during the 1921 expedition

References

^ ^a ^b Howard-Bury, Charles; Mallory, George Leigh (1991). Keaney, Marian (ed.). Everest Reconnaissance : The First Expedition of 1921. London: Hodder & Stoughton. ISBN 0340556021.
^ Shipton, Eric (1955). Man Against Everest. Prentice-Hall. pp. 20–35. Archived from the original on 22 January 2015. Retrieved 15 June 2014.
^ *Murray, W. H. (1953). The Story of Everest. J. M. Dent & Sons. pp. 31–41.
^ Johnson, Lexi (May 14, 2013). "The Highest Lakes In The World". Retrieved 29 August 2013.

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[hb-1] Howard-Bury, Charles; Mallory, George Leigh (1991). Keaney, Marian (ed.). Everest Reconnaissance : The First Expedition of 1921. London: Hodder & Stoughton. ISBN 0340556021.

[shipton-2] Shipton, Eric (1955). Man Against Everest. Prentice-Hall. pp. 20–35. Archived from the original on 22 January 2015. Retrieved 15 June 2014.

[murray-3] *Murray, W. H. (1953). The Story of Everest. J. M. Dent & Sons. pp. 31–41.

[lexitravels-4] Johnson, Lexi (May 14, 2013). "The Highest Lakes In The World". Retrieved 29 August 2013.

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v t e Mount Everest
Topography and landmarks	Base Camp Geneva Spur Hillary Step Hornbein Couloir Kangshung Face (East Face) Kangshung Glacier Khumbu Glacier Khumbu Icefall Lhakpa La Lho La North Col North Face Norton Couloir Rongbuk Glacier South Col South Summit Three Pinnacles Three Steps "Green Boots cave" Western Cwm
Expeditions	1921 British reconnaissance 1922 British 1924 British (Affair of the Dancing Lamas) 1933 British aerial reconnaissance 1933 British 1935 British 1936 British 1938 British 1950–52 British–Swiss–US reconnaissance 1951 British 1952 Swiss 1953 British 1960 Chinese 1963 American 1975 British SW Face 1976 British–Nepalese SW Face 1979 Yugoslav West Ridge 1996 Indo-Tibetan Border Police 2006 Philippine 2007 Altitude Everest expedition Earth Day 20 International Peace Climb Mallory and Irvine Research Expedition
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