Heilongjiang is China's sixth largest province. As a northeast border province, it shares a 3000 km border with the Russian Federation (Russia). The most northern point of China's territory is located in Heilongjiang, at 53°32' N latitude. The entire northern border is demarcated by the Amur (Heilong Jiang), the largest river of the province. Part of the eastern border runs along the Ussuri (Wusuli Jiang). The third large river is the Son…