Nen River
In the south, the Funen railway begins in Fuyu as a fork off of the Qiqihar–Bei'an railway. It proceeds northeast along the Nen River valley to Nehe and then to Nenjiang, where the Nenjiang–Greater Khingan Forest (Nenlin) railway heads northwest to Inner Mongolia and the Nenjiang–Heibaoshan railway branches northeast to Heibaoshan. In recent years, the Funen and Nenlin railroads have been collectively referred to as the Fuyu West (Fuxi) railway ().