The next morning, on our way to Marchema, we met other travelers on their way back from top of the mountain.
They traveled in quite a big group, so they need to use Yaks (Bos grunniens) to carry their stuff.
Yaks are kept primarily for their milk, fibre and meat, and as beasts of burden. Their dried dung is an important fuel, used all over Nepal, and is often the only fuel available on the high treeless Nepal plateau. Their spill are absolutely eco-friendlier than BP oil spill at the Gulf.
Yaks transport goods across mountain passes for local farmers and traders as well as for climbing and trekking expeditions.