Yitong River

　　Yitong River, historically known as Yitou River, Yitun River, and Yidun River—all transliterations from Manchu meaning “mighty” and “turbulent.” Its source is at the northern foot of Qingding Mountain in Qiyuan Town, the southernmost part of Yitong County. The Yitong River is the largest tributary of the Yinma River and also a major river flowing through the Changchun area. It runs through the Changchun region and Dehui City, and joins the Yinma River to the east of Kao Mountain Town in Nong’an County. It has a total length of 342.5 kilometers and a drainage area of 8,440 square kilometers. Within Changchun, the river stretches 286.9 kilometers (including 23 kilometers within the urban area of Changchun), covering a drainage area of 5,412.9 square kilometers. The Yitong River played an important role in the formation and development of the city of Changchun. Due to changes in hydrological conditions, it no longer serves navigational purposes.