The World's Largest Cave Formations
| Longest column | 61.5 meters | Tham Sao Hin, Thailand |
| Tallest stalagmite | 67.2 meters | Cueva San Martin Infierno, Cuba |
| Longest free-hanging stalactite | 12 meters | Sistema Chac Mol, Mexico (underwater cave) |
| Longest soda straw | 9.03 meters | Unnamed cave, Mexico |
| Tallest gour (rimstone dam) | 22 meters | Actun Kotob, Belize |
| Longest single gour | 610 meters long 20 meters high |
Wadi Sannur Cavern, Egypt (1) |
| Longest connected gour series | 400 meters | Tinas Tepe Magara, Turkey |
| Flowstone cascade with greatest vertical extent | 150 meters | Neverland to Dead Sea Lechuguilla Cave, New Mexico |
| Longest continuous formation, white calcite crust in a stream channel | over 3 km |
Snowy River Passage, |
(1) Wadi Sannur is a rare type of cave formed by roofing over of a giant
surface gour at its spillover point.
The gour was formed by a large thermal spring.
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| The world's tallest stalagmite, 67.2 meters high. Note the caver in red on the left side of the formation. |
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| The world's largest column, 61.5m high, in Tham Sao Hin, Thailand. For scale, note a caver at the base of the column in blue jacket, another sitting in the foreground, and another high on the slope to the right of the column. |
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| A chamber with the world's longest soda straws. The tops of the straws extend above the visible roof line. Two of those in the foreground measure over 8 meters long. One of those partially hidden behind the stalagmite measures over 9 meters. |
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| This may be the world's tallest rimstone dam or gour. A caver is standing in a notch in the dam, in the red circle. The dam is roughly 22 meters high. |
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Created: April 18, 2002 Author: Dave Bunnell |