额尔古纳河在康熙年间就被确定为中俄界河,与俄罗斯的赤塔州隔河相望。边境线长达667公里。河的右岸就是因它得名的额尔古纳市。额尔古纳曾是拓跋鲜卑祖先居住过的地方,蒙古室韦部落在隋唐时期就在此游牧,是蒙古族发祥地,也是成吉思汗的故乡。小城北部是大兴安岭一望无际的原始森林;哈乌尔河、得尔布干河与根河之间是水草丰美的呼伦贝尔大草 The Erguna River was identified as the boundary between China and Russia during the reign of Kangxi and across the river from Chita in Russia. The border line up to 667 kilometers. The right bank of the river is called Ergun because of its name. Ergun was the place where Tuoba Xianbei ancestors had lived before. The Mongolian Wei family in this area was nomadic in the Sui and Tang dynasties. It was the birthplace of Mongolian people and the hometown of Genghis Khan. The northern part of the town is the endless forest of the Greater Hinggan Mountains; between the Ha’err River, the Deerbud and the root rivers,