The lofty old city of Guge is located on a earth mountain on the South Bank of Xiangquan River in the northwest of Tuolin Town, zabugang District, arizada county. It is more than 300 meters high from the foot of the mountain to the top of the mountain. Houses, pagodas and caves are all over the mountain, reaching more than 600, forming a huge ancient building complex. Because it is built of clay soil from the surrounding soil forest, the ruins of the ancient castle are integrated with the soil forest at the foot. When the morning sun rises or night falls, the ancient grid site will show a kind of fragmentary and tragic beauty against the background of the earth forest.