Introduction to Mogan Lake: Mogan Lake is located at the southern foot of Mogan Mountain and in the middle reaches of Yuying River. In 1964, Deqing built the Duhekou Reservoir. The dam is 58 meters high and 293 meters long. The area is 3.7 square kilometers at normal water level and 5.48 square kilometers at maximum water level. Because it is close to Mogan Mountain, it is called "Mogan Lake". Here, the lakes and mountains are so beautiful.