扎敦河（滿語：ᠵᠠᡩᡠ᠋ᠨ
ᠪᡳᡵᠠ，穆麟德轉寫：Jadun bira）位於中華人民共和國內蒙古自治區牙克石市南部，是免渡河右岸支流，發源於免渡河鎮東部大興安嶺西麓安伊克奈山，蜿蜒向南流至三根河林場後轉西流，於免渡河鎮東南匯入免渡河。河長125.7千米，流域面積2750.8平方千米，年均徑流量0.35億立方米。扎敦河地處山區，山巒起伏，林木廣布。[1]
參考資料
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