大興安嶺山脈
Donghu (; IPA: ; literally: "Eastern foreigners" or "Eastern barbarians") was a tribal confederation of nomadic people that was first recorded from the 7th century BCE and was destroyed by the Xiongnu in 150 BCE. They lived in northern Hebei, southeastern Inner Mongolia and the western part of Liaoning, Jilin and Heilongjiang along the Yan Mountains and Greater Khingan Range.