The Horn of the Yak is a large mountain north of the Khor-Biyong monastery. It takes two days to reach the mountain from the monastery. It is also home to Migu, or the Yeti.Tintin rescued his friend Chang Chong-Chen from a cave near the Horn of the Yak in Tintin in Tibet, when the latter was involved in a plane crash and was taken to safety and sheltered by the Yeti.