The Sanxian Cave (), or Sanxian Dong, literally meaning 'Three Fairies Cave', is a

limestone cave A solutional cave, solution cave, or karst cave is a cave usually formed in the soluble rock limestone. It is the most frequently occurring type of cave. It can also form in other rocks, including chalk, dolomite, marble, salt beds, and gypsum. ...

located in Sanjiaoyan Village, Mengga Town, Mangshi City, Yunnan Province. The folklore says that the Cave was named after the three immortals who discovered it and lived in it for a long time. The Sanxian Cave was formed in the Late Permian, more than 2.7 million years ago. There are

stalagmite A stalagmite (, ; from the Greek , from , "dropping, trickling") is a type of rock formation that rises from the floor of a cave due to the accumulation of material deposited on the floor from ceiling drippings. Stalagmites are typically ...

stalactite A stalactite (, ; from the Greek 'stalaktos' ('dripping') via ''stalassein'' ('to drip') is a mineral formation that hangs from the ceiling of caves, hot springs, or man-made structures such as bridges and mines. Any material that is soluble an ...

s, stone pillars, stone mantles, stone flowers and other landscapes distributed in the cave.

References

Geography of Yunnan Limestone caves {{Yunnan-geo-stub