Rising in the Changbai Mtns., it is joined by its chief tributary, the Nen River, before it enters the Amur River 1,197 mi (1,927 km) later.

• 松花江起源于长白山脉，它在奔流1,197哩（1,927公里）后，先与其主要支流嫩江?合，才汇入黑龙江。