C1480 Songhuanjiang

The Songhua River was the boundary between the two provinces of Jilin and the Qing Dynasty, and was also the largest branch of the Heilongjiang. The Heilongjiang took the east as the territory of the Jilin, and then, the usuri River flowed from the south to the north, converging into the Heilongjiang.

At the beginning of April, outside was still a world of ice and snow