The Path of the Mani is an ancient high-road from Kathmandu, Nepal, to the mountain pass of Langtan between the valleys of Nepal and the dry highlands of the Tibetan plateau. The pass is characterised by cairns and aligned stones and slabs at the sides often with a form of mandala or inscription on them. The path played an important role in trade between India, Nepal and Tibet where beasts of burden such as mules, yaks and donkeys would carry furs, hides, yak tails, borax, salt, musk and medicinal herbs for trading.
At Langtan a mantra guards to entrance to Tibet with a holy invocation of Avalokiteshvara.
- ^ Willis, Michael (1999). Tibet:Life, Myth and Art. Duncan Baird Publishers Ltd.