Aerial photo taken on Oct. 12, 2020 shows scenery in the Wujiaofeng scenic spot in Horqin Right Wing Middle Banner of Hinggan League, north China's Inner Mongolia Autonomous Region. (Xinhua/Xu Qin)

Aerial photo taken on Oct. 11, 2020 shows scenery in the Wujiaofeng scenic spot in Horqin Right Wing Middle Banner of Hinggan League, north China's Inner Mongolia Autonomous Region. (Xinhua/Xu Qin)

Aerial photo taken on Oct. 11, 2020 shows scenery in the Wujiaofeng scenic spot in Horqin Right Wing Middle Banner of Hinggan League, north China's Inner Mongolia Autonomous Region. (Xinhua/Xu Qin)

Aerial photo taken on Oct. 11, 2020 shows scenery in the Wujiaofeng scenic spot in Horqin Right Wing Middle Banner of Hinggan League, north China's Inner Mongolia Autonomous Region. (Xinhua/Xu Qin)