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Caption
Freshwater ecoregions of the world. WWF US 2007. Fragment of map covering Amur river basin: 524 - Eastern Mongolia Endhoreic Basin; 525- Argun; 526-Shilka; 527-Middle Amur; 528-Lower Amur; 529-Coastal Amur; 530-Songhua Jiang. Adjacent basins: 524-Eastern Mongolia Endhoreic Basin; 532-Liao He; 533-Notheastern Korea; 534-West Korea; 540-Far East.