The Usuri ula (, or Wusuli River) is a river in the south of the Outer Manchuria (Russian Far East) and east of Inner Manchuria (Northeast China). It rises in the Sikhote-Alin range, flowing north, forming part of the Sino-Russian border based on the Sino-Russian Convention of Peking in 1860, until it joins the Amur River at Khabarovsk (). It is approximately 897 km (557 mi) in length. The area of the Usuri basin is 193,000 km² (74,516 mi²). Its waters come from rain (60%), snow (30-35%) and subterranean springs. Average discharge is 1,150 m³/s, elevation - 1,682 m. The Usuri River is known for its catastrophic floods. It freezes up in November and stays under the ice until April. The river teems with different kinds of fish: grayling, sturgeon, humpback salmon (gorbusha), chum salmon (keta) and others.
In World War II the river was one of the regions where Soviet forces crossed into Manchuria in Operation August Storm in 1945.
The Sino-Soviet border conflict of 1969 took place at the Soviet's island Damansky on the Usuri River.
Also, the Usuri is a tributary of the Amur River.
Major tributaries of the Usuri River are:
|
|||||||||||||||||
