In China, the Khingan mountains are divided into the
Greater Khingan and Lesser Khingan. The Lesser Khingan range runs roughly from the northwest to the southeast and separates the valley of the
Amur (Heilongjiang) River from that of the
Nenjiang River. The mountain range then turns toward the east and north-east, entering Russia. The Amur/Heilongjiang, which is a border river, forms a gorge when crossing the mountain range. ==See also==