Zhangye rests it head on Qilian Mountain in the south and leans on Heli Mountain in the north, with Hei River running through its territory, forming a distinguished view of oasis in desert.
张掖南枕祁连山,北依合黎山、龙首山,黑河贯穿全境,形成了特有的荒漠绿洲景象。
Model applied in recent harness of the Hei River and result evaluation;