| River name/Items | Length of trunk stream（kilometer） | Watershed area（square kilometer） | Annual mean water discharge（cubic meter per second） | Annual runoff（hundred million cubic meter） |
| Ruoshui river | 800 | 38760 | 136.83 | 43.17 |
| Kachgar river | 630 | 38840 | 25.00 | 16.8 |
| Tang-he | 450 | 17000 | 9.20 | 12.90 |
| Shiyang river | 137 | 11080 | 89.90 | 28.32 |
The range stretches from the south of Dunhuang some 800 km to the southeast, forming the northeastern escarpment of the Qinghai-Tibet Plateau and the southwestern border of the Hexi Corridor.The eponymous Qilian Shan peak, situated some 60 km south of Jiuquan, at 39°12′N 98°32′E, rises to 5,547 m. It is the highest peak of the main range, but there are two higher peaks further south, Kangze'gyai at 38°30′N 97°43′E with 5,808 m and Qaidam Shan peak at 38°2′N 95°19′E with 5,759 m. Other major peaks include Gangshiqia Peak in the east.
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