Introduction to Mochou Lake: Mochou Lake was called Hengtang in ancient times, and because it is close to Stone City, it is also called Shicheng Lake. Because a girl named Mochou married in a foreign country, and her husband was drafted into the army, there was no news. Mochou's thoughts turned into a lake day and night. In order to commemorate this dignified, virtuous, helpful, and loyal woman, later generations changed her name to Mochou. Sad Lake.