| Most viewed - Cave City-KY |

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Saltpetre (Potassium nitrate) mine69 viewsWith the help of bat dung in the cave, dirt is put in bins like this and with water the minerals are leeched out forming saltpetre which is used in gunpowder. When it is all leeched out, fresh cave dirt is put in. This where the term "petered out" comes from.
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Water pump house for the honeymoon cottage68 views
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68 views
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Blue hole67 viewsOne of several, these pools appear blue normally when it hasn't recently rained. Swimming in them is dangerous though as they are connected to the underground river that runs under and through the cave with a swift current. This hole is rumored to be bottomless. A wagon went in here and disappeared horse and all. 3 civil war soldiers went in to save another who was swimming here and disappeared but they too disappeared or so the story goes.
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67 views
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66 views
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66 views
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Brief stop for a rest and questions66 viewsMammoth Cave is a dry cave. Being dry allowed it to grow to over 500 miles long. Dry caves look very different from wet caves. There are very few stalagtites and stalagmites. This cave is still growing too. A thick sandstone cap is what keeps it dry. If you have allergies, you won't notice them in here. For a few months quite some time ago, a doctor had huts built of stone in the caverns and used them for patients with tuberculosis (consumption). Unfortunately, it did not help and was abandoned.
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Lost River Cave65 views
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65 views
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65 views
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