It’s not Hengyang Yan. There is no such thing as Hengyang Yan. It’s just that Hengyang is related to Bei Gui Yan.

Hengyang City has Huiyan Peak, which is the first peak among the 72 peaks of Nanyue Hengshan Mountain. In ancient times, northern geese flew south and rested their wings to rest here, which is a metaphor for the lack of communication. The reason why geese choose to fly to Hengyang to avoid the cold is because Hengshan Mountain in the north of Hengyang blocks the strong cold air blowing from the north in winter. In winter, the temperature in Hengyang in the southern area of ??Hengshan Mountain is on average more than 2 degrees higher than the temperature in Xiangtan in the northern area, which is relatively warmer. Very suitable for creatures to avoid the cold.

There is Huiyan Peak in Hengyang City. It is said that in autumn, northern geese fly south and stop at Huiyan Peak in Hengyang, Hunan Province, and no longer fly south.

There are many lines in poetry that associate Hengyang with wild geese:

The ape cries in Wuxia for a few lines of tears, and the geese return to Hengyang for a few letters.

The spring water in Dongting is green, and the geese from Hengyang return.