Yi river, also known as Yishui, is a big river in the Siyishu River system in the Huaihe River Basin. Yi river originates from Tianzhuang Reservoir in Yiyuan, and flows through Yiyuan in Zibo, Yishui in Linyi, Yinan in Linyi, Linyi City, Lanling in Linyi and Tancheng in Linyi, to Pizhou in Jiangsu, to Xinyi River, to Wei Yan Port and to the Yellow Sea.
The total length is 574 kilometers, the drainage area is 17325 square kilometers, the catchment area is 4892 square kilometers, and the widest river surface is 1540 meters. Linyi people call it "Mother River".
Fenshuiling scenic spot
Many famous towns in Yimeng Mountain area are mostly located on both sides of yi river. The Yi River runs through the mountains, with endless mountains and green waters, beautiful natural scenery and a collection of places of interest.
There are Lushan Cave Group, Yiyuan ape-man skull fossil, Daxian Zhinv Cave, Dongan Ancient Town, Hezhai Village Han Dynasty Portrait Tomb, Yang Du Ancient Town, Yuguo Ancient Town, Jinque Mountain, tapiscia sinensis Shanhan Group and Tanguo Ancient Town along the coast. Large reservoirs such as levee, Bashan and Xujiaya have built key tourist attractions.