The Dehua Stele in Nanzhao is at the foot of Fading Peak of Cangshan Mountains in the middle of Dali and Xiaguan and is six kilometers from Xiaguan City proper. It faces Erhai Lake, with its back to the Cangshan Mountains. The stele was built in 766, the first year of the reign of Tang Emperor Dehua. It is 3.02 meters high, 2.27 meters wide and 0.58 meter thick. Made of sandstone, the stele records the political and military affairs of Nanzhao State and the cause of the Tianbao Battle between Nanzhao and Tang forces. Most important is the fact that the stele records Yunnan Province and the relations between these groups.