Jianchang Longtan Grand Canyon is the largest canyon in western Liaoning, located at the junction of Huludao City, Chaoyang City, Liaoning Province and Qinhuangdao City, Hebei Province, and upstream of the east branch of Luanhe River system. The reason for the formation of the Grand Canyon is the drop caused by the geological fault zone in western Liaoning, and the underground canyon formed under the impact and erosion of rivers. The natural pools, cliff waterfalls, rugged stone forests and national AAA scenic spots composed of various trees and vegetation are the most famous tourist attractions in western Liaoning.