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| Ren Davis/Special |
| A popular section of Mammoth Cave is called 'Frozen Niagara,' one of the few places in this central Kentucky landmark where visitors can see stalactites and stalagmites. |
![]() |
| Ren Davis/Special |
| A popular section of Mammoth Cave is called 'Frozen Niagara,' one of the few places in this central Kentucky landmark where visitors can see stalactites and stalagmites. |