Introduction to Tiancun: Tiancun, formerly known as Nalaga, is located on the top of the north bank of the middle and lower reaches of the Relegong River, with an altitude of 3910 meters. Looking up from the canyon, it looks like a mirage hanging between the green pines and cypresses and the flowing clouds in the sky. It is the fixed residence of the herdsmen in the Qihu District. Because the village has a high terrain, difficult roads, and has preserved its intact original style, the locals call it "Tiancun". ".