Table 6 Statistics of the number of grottoes located in river basins in Gansu Province
Basin | Yellow River Basin | Yangtze River Basin | Continental River Basin | ||||||
|---|---|---|---|---|---|---|---|---|---|
Taohe | Huanghe | Jinghe | Weihe | Trunk stream | Jialing | Shule | Heihe | Shiyang | |
Number | 11 | 7 | 63 | 66 | 19 | 22 | 21 | 20 | 17 |