Huaian City, Jiangsu Province. The Qinling Mountains and Huaihe River line is the geographical dividing line between north and south of China. Huaian is the core area north of the Yangtze River, adjacent to the river and offshore. It is the main artery of north-south traffic and has a unique location advantage. On September 9, 2009, with the approval of the State Bureau of Surveying and Mapping, the Huai 'an Municipal People's Government agreed to set up China North-South Geographical Boundary Mark Park in Huai 'an. In this regard, Huai 'an has become a nationally recognized north-south boundary city.
Aerial photography of the landscape of China North-South Geographical Boundary Monument Garden on the ancient Huaihe River, and the China North-South Geographical Boundary Monument Garden established by Huai 'an on the ancient Huaihe River represented the north and south with red and blue colors, which became a landscape on the ancient Huaihe River.