甩开高低不平的丘陵地带,列车进入一望无际的原野。我凝神望着窗外碧绿的科尔沁草原,一曲深沉的旋律萦绕在我耳边:“南方飞来的大鸿雁啊,不落长江不呀不起飞……”歌词中的长江,就是指科尔沁草原上的西拉木伦河。多少年来,这支悲壮的歌曲到处传唱着,在蒙古族人民中已是无人不晓。那么,那条著名的西拉木伦河在哪里?在这科尔沁草原的深处吗? Throw away the hilly terrain, the train into the endless fields. I looked out the window green Horqin prairie, a deep melody lingering in my ears: “The big swan flying in the south ah, do not fall the Yangtze River does not die ah do not fly ... ” The lyrics in the Yangtze River, refers to Horqin The Westlaamun River on the Prairie. For many years, this tragic song has sung everywhere, and it is no stranger to the Mongolian people. So, where is the famous West Lomond River? In the depths of this Horqin grassland?