Introduction to the Qianlong Boundary Monument: The Qianlong Boundary Monument is located at the southernmost end of the Butterfly Valley Scenic Area and can be reached on foot from Butterfly Valley. The Qianlong Boundary Stele is a stone stele engraved on the mountain wall at the junction of Shaanxian County and Luoning. The stele is engraved with "Boundary Stele". Shaanzhou is the southeast and Yongning is the northwest junction.