National 4A tourist attractions. The valley is winding, the river is green, the cliffs on both banks are steep, and karst caves, stalagmites, and stone pillars are densely covered, so it is known as the "Little Lijiang River" in Beijing. In spring and summer, people come here to play in the water and go hiking; In winter, here is a sea of ice lanterns. There is a reinforced concrete dam at the Gukou of Longqingxia, which is a huge reservoir
