The original concept of the trail was to establish a single long distance trekking trail from the east end to the west end of Nepal that includes a total of roughly 1,700 kilometres (1,100 mi) of path. There is a proposed trail of more than 4,500 kilometres (2,800 mi) stretching the length of the Greater Himalaya range from Nanga Parbat in Pakistan to Namche Barwa in Tibet thus passing through, India, Nepal, Bhutan and Tibet. Although an actual continuous route is currently only a concept, if completed it would be the longest and highest alpine hiking track in the world.[citation needed]