Here is the Sino-Russian border, "where the river converges, where the sea opens, where the road begins", where the Songhua River flows into Heilongjiang and into the sea, where the North-South arteries of the Chinese Highway and the Three Highways begin. The confluence of the two rivers, the clear distinction between the Jingwei River and the Huang Songhua River, and the Black Dragon River, which do not mingle for more than ten kilometers, is magical.