Annapurna circuit trekking known as Round Annapurna trekking or Thorung La pass trek which is one of the most popular trekking in the world. The highest point of annapurna circuit trek is Thorung La pass (5416m) it is great and challenging trekking passes in Annapurna region.
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Down the valley -Annapurna Region Nepal - flickr - Nomad Tales