Qijiehe River
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27-Brief characteristics of foreign karst tiankengs
Timer：2015-03-25
At present, all tiankengs except those in China (26) in the world distribute in low latitudes, such as New Britain Island of Papua New Guinea, Sarawak State of Malaysia and Mexico; however, they are not typical in shape, with slow walls, less depth and thick sediments at the bottom.
Main foreign tiankengs (according to Tony. Waltham and Mladen Garasic, et al.)
| Name | Country and Location | Entrance diameter (m) | Entrance area (m2) | Depth (m) | Volume (M m3) | Morphological characteristics |
| Garden of Eden | Mulu,Sarawa Malaysia | 1200×800 | 750000 | 200 | 150 | Only one side is steep wall, and it belongs to erosion type tiankeng possibly. |
| Luse | Nakanai Mt. New Britain P.N.Guinea | 800×600 | 380000 | 220 | 60 | There is no steep cliff around with thick sediments at the bottom. |
| Minye | Nakanai Mt. New Britain P.N.Guinea | 300×300 | 70000 | 420 | 26 | There are caves at the bottom with dense vegetation. |
| El sotano | Mexico | 400×200 | 60000 | 380 | 15 | The deepest tiankeng in Mexico. |
| Grveno Jezero (Red Lake) | Dinaric， Croatia | 280×200 | 56000 | 528 | 30 | Water gathers to form the lake with the depth of 281m, with caves and underground rivers. |
| Pozzatina | Gorgano Italy | 675×440 | 297000 | 130 | 16 | The entrance is elliptic on the whole with a vertical shaft at the bottom. |
| Velika | Slovenia | 300×148 | 44000 | 177 | 7.5 | Within Skocjan cave system(World natural heritage site) |
| mala | Slovenia | 227×148 | 33000 | 120 | 4.1 | Within Skocjan cave system(World natural heritage site) |
| Risnik | Slovenia | 236×236 | 43000 | 100 | 4.3 | Irregular heart-shaped with steep palisades around |
| Pres pueblos Hole | Rio camuy Puerto Rico | 130×130 | 13000 | 215 | 2.8 | There is underground river at the bottom |
