Ergun
Ergun,
river, China: see ArgunArgun, Mandarin Ergun, river, 950 mi (1,529 km) long, rising in the Da Hinggan Mts., Heilongjiang prov., NE China, as the Hailar River and flowing W to the Russian border, then NE along the Russian-China frontier, where it joins the Shilka River to form the Amur.
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