- Ussuri River
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Ussuri River is the largest tributary of Amur River(Heilong River) on its right and an important boundary river between China and Russia. The length of Ussuri River is 905 km (562 mi), with a drainage area of 187,000 km2 (72,000 sq mi). The river goes through the valley between the Wanda Mountains in China and the Sichote-Alin in Russia. Its beauty and natural landscapes are incomparable in China and it is among the few unpolluted rivers in China.