What tributaries are there on the south bank of Huaihe River?

The Huaihe River originates from Laoyacha, Tongbai Mountain, Nanyang City, Henan Province, flows eastward to Henan, Anhui and Jiangsu provinces, and enters the Yangtze River at Sanjiang Camp, with a total length of 1000 km and a total drop of 200 meters. "Tongbai County Records" contains: "Huai, starting from Dafu (Dafu Peak, Taibaiding), next to it, is seen in Yangkou". "The Unified Records of Daming" contains: "Tongbai Mountain, Huaihe River comes out". The source of Huaihe River consists of 58 tributaries of Tongbai Mountain. The determination of the source of a river generally follows the principle of "the height is the source and the distance is the source". Hu Aijing is designated as the main source of the Huaihe River for three reasons: First, the water level is the highest among the 58 tributaries of the Huaihe River (1 140m), which is the farthest from the East China Sea; Second, Huaimiao was established here when Qin Shihuang was the emperor, and it was the place where the emperor offered sacrifices to the Huaihe River. 3. Records: Emperor Qianlong of the Qing Dynasty sent officials here twice to explore the source, and political envoy Jiang Lan and Henan Governor Bi Yuan both explored the real source of the Huaihe River here. The tributaries of the south bank of Huaihe River are Shiguan River and Pi River. Shiguan River is formed by the confluence of Guanhe River and Shihe River, which originated in Dabie Mountain, and flows into Huaihe River in sanhejian, a triangle at the junction of Anhui and Henan. Pi River originates from the eastern Dabie Mountain in Yuexi County, Anhui Province, flows through Huoshan County and Lu 'an County, and joins the Huaihe River at Zhengyangguan in Shouxian County, with a total length of 248 kilometers.