Also in Tibet, the training site for a brigade under the PLA Xizang Military Command is located on a snowy mountain at the elevation of 4,800 meters. In the mountainous alpine area characterized by extreme coldness and oxygen deficiency, officers and soldiers have to walk for more than 40 kilometers bearing weight, from a differential elevation of nearly 2,000 meters, and then cross over a snow mountain of more than 5,000 meters. The road is usually covered with thick snow that could reach the waist at some parts. Also, it is easy to get lost in the black mountains surrounding. The patrol detachment has to judge the current position at any time and carefully explore snow caves on the way. In all, the patrol road is full of challenges.
