Nanning, referred to as Greentown and Tancheng for short, is a prefecture-level city, provincial capital and core city of Beibu Gulf urban agglomeration under the jurisdiction of Guangxi Zhuang Autonomous Region, a central city of Beibu Gulf Economic Zone approved by the State Council, and a comprehensive transportation hub connecting southwest China with the sea.
Topography Nanning's topography is basin-shaped with the vast valley of Yongjiang River as the center. This basin is open to the east, surrounded by mountains in the south, north and west, with high peaks and low mountains in the north, high hills with seven slopes in the south and Phoenix Mountain (Dongshan Mountain in Daming Mountain in the west) in the west. Formed a long valley basin from Fenghuang Mountain in the west to Qingxiu Mountain in the east.
The center of the basin has become a concentrated place of rivers, with Youjiang in the northwest, Zuojiang in the southwest, Liangfeng River in the south and Xinxu River in the north, forming a centripetal water system. In the middle of the basin, where the left and right rivers meet, the hills on the north and south sides cling to the river bank, forming a natural dividing line, which divides the long valley and the basin into two small basins, one is the Yongjiang River Valley basin with Nanning as the center; The second is the erosion-dissolution basin centered on Tanluo Town.