introduce
Next to the first pier of the Great Wall, there is a Qulai River, which is quite steep and has a feeling of canyon and abyss.
Originating from the Qilian Mountains, it flows through Jiayuguan for about 35 kilometers. The middle and upper reaches of the river have been scoured by the river for a long time, and the river bed has been widening or sinking year by year, forming a grand canyon with a depth ranging from 50 to 60 meters to 800 meters. Very dangerous. The Qulai River belongs to the Heihe River system. Its original name is "Hucanshui", which means a gift from heaven, and it is also called "Bei Dahe".
