Thorong La

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The top of Thorong La; the way to Manang is on the left, and Muktinath is on the right.

Thorong La or Thorung La is a summit pass located 5,416 meters above sea level in the Annapurna Himal in Nepal. It connects the town of Manang (3540 m), in the Manang district to the east, with the town of Muktinath (3800 m), to the west in the Mustang district. It is regularly used by local traders who walk the 35 km distance between the two towns in one day.

[edit] Tourism

Sign at the top of Thorong La.

Thorong La is the highest point on the Annapurna Circuit, a 300 km trek around the Annapurna Massif. The pass is high enough to cause Acute Mountain Sickness (AMS) in trekkers who have not acclimatised to the altitude. While it is possible to cross Thorung La from Manang to Muktinath in one day, the doctors of the Himalayan Rescue Association post in Manang recommend that trekkers spend five nights between their arrival in Manang and the crossing.

The safest season with a clear weather window for crossing the pass is between March and April and between October and November. Attempting to cross the Thorung La in winter is dangerous due to avalanches, the risk of frostbites and the chances of losing his way in the snow.

Most tourists cross the pass from east to west (Manang to Muktinath), which is the easiest and safest direction. Before the pass, trekkers can spend the night either in Thorung Phedi (at 4420 m) or at Thorong High Camp (4800 m), meaning that they will have to climb a maximum of 1000 m and descend about 1600 m. The way from Muktinath does not offer opportunities for altitude acclimatisation, with the last spot where it is possible to spend the night being at 4100 m, meaning that a trekking going from west to east will have to ascend 1300 m and descend at least 600 m in one day.