Nen River
The east and southwest of the province, which are relatively flat and low in altitude, feature the Muling River, the Naoli River, the Songhua River, the Nen River, and the Mudan River, all tributaries of the Amur, while the northern border forms part of the Amur valley. Xingkai Lake (or Khanka Lake) is found on the border with Russia's Primorsky Krai.