淮河
The Cihuai Canal in northern Anhui opened to navigation in 1984. This 134-kilometer canal linking the Ying River, a major tributary of the Huai River, with the Huai He's main course, had an annual capacity of 600,000 tons of cargo. The canal promoted the flow of goods between Anhui and neighboring provinces and helped to develop the Huai River Plain, one of China's major grain-producing areas.