大興安嶺山脈
Heilongjiang is a land of varied topographies. Much of the province is dominated by mountain ranges such as the Greater Khingan Range and Lesser Khingan Range, Zhangguangcai Mountains, Laoye Mountains, and Wanda Mountains. The highest peak is Datudingzi Mountain at , located on the border with Jilin province. The Greater Khingan Range contains China's largest remaining virgin forest and is an important area for China's forestry industry.