Introduction to Shanghutiao: From the Shanghutiao Gorge to the mouth of the Lower Gorge, the drop reaches 210 meters, with an average of 14 meters per kilometer. The river current is very fast, with many passages, reaching six to eight meters per second. Therefore, the situation of the river changes rapidly. It may be roaring wildly, rocks may be turbulent, snow waves may be flying, or it may be a whirlpool, roaring waterfalls, or mist. It constitutes a rare landscape wonder in the world.