Amur River (Heilongjiang)

Amur River (Heilongjiang), stretching 4,444 km along the Russia-China border, is East Asia’s longest undammed river. Known as "Black Dragon River" in Chinese, its basin hosts Siberian tigers, sturgeon, and indigenous Nanai communities. Seasonal monsoons trigger dramatic floods, while winter ice creates ephemeral bridges. A symbol of tense Sino-Russian history, it now fosters cross-border trade and conservation efforts like the "Land of the Leopard" National Park. From Mongolian steppes to the Pacific, the Amur embodies wilderness and geopolitical intrigue.