The Songhua River does not necessarily have to be seen in Heilongjiang. There are also fascinating night scenes Songhua River is one of the seven major rivers in China and the largest tributary of Heilongjiang in China. The Songhua River was called the Difficult River in the Sui Dynasty. The Tang Dynasty called the water. The Liao and Jin Dynasties called the Duck River and the Mixed River. In the Qing Dynasty, it was said to be mixed with the River and Songhua River. The Songhua River flows through Jilin and Heilongjiang provinces; the drainage area is 557,200 square kilometers, covering Heilongjiang, Jilin, Liaoning, and Inner Mongolia in the four northeastern provinces; the annual runoff is 76.2 billion cubic meters.