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| Frozen Niagara is perhaps the largest travertine speleothem area along the public tour routes within Mammoth Cave. Stalactites form from the accumulation of calcium carbonate as water drips from the carvern ceiling; stalagmite build up where water drips to the flow and minerals precipitate; columns form where stalactites eventually join their corresponding slagmites, and flowstone forms where flowing water precipitate minerals as on the canyon walls. Most of the speleothems on the public cavern tours are in this section of Mammoth Cave. |
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