The Sanjiang Plain includes the Amur River (also known as the Heilong, or literally, "Black Dragon" or River), Songhua and Ussuri (also known as the Wusuli) rivers and covers 23 counties in Heilongjiang Province, China encompassing about 109,000 km². The area has extensive wetlands.^[1]

References

^ Wang, A.; Zhang, S.; Zhang, B. "A study on the change of spatial pattern of wetland in the Sanjiang Plain". Acta Ecologica Sinica. 23 (2): 237–243.

v t e Plains of China
Northeast China Plain	Sanjiang Plain Songnen Plain Songliao Plain Liaohe Plain Amur River Valley Yalu River Valley
North China Plain	Haihe Plain Yellow River Flood Plain Yellow River Delta Jiaolai Plain Huaihe Plain Huanghuai Plain Lixiahe Plain
Middle and Lower Reaches Plain of Yangtze River	Lianghu Plain (Dongtinghu Plain Jianghan Plain) Boyanghu Plain Wanzhong Yanjiang Plain Yangtze River Delta Taihu Plain Hangzhou–Jiaxing–Huzhou (Hangjiahu) Plain Xiaoshao Plain Ganfu Plain Liyang Plain Chaohu Plain Jianghuai Plain
Coastal Plains in Southeast China	Ningshao Plain Wenhuang Plain Weirui Plain Aojiang Plain Fujian Plains(Fuzhou Plain Xinghua Plain Quanzhou Plain Zhangzhou Plain) Chaoshan Plain Pearl River Delta Xunjiang Plain Nanliu River Delta Binyang Plain Yuen Long Plain
Upper and Middle Reaches Plains of Yellow River	Huangshui Valley Yinchuan Plain Hetao Plain Tumochuan Plain Fen River Valley Yuncheng Basin Qinshui Basin Guanzhong Plain
Other Plains	Chengdu Plain Han River Valley Ili River Valley Hexi Corridor

48°10′00″N 134°00′00″E / 48.1667°N 134.0000°E / 48.1667; 134.0000