A pit cave, shaft cave or vertical cave or often simply called a pit (in the US) or pot (in the UK) is a type of natural cave which contains one or more significant vertical shafts rather than being predominantly a conventional horizontal cave passage.
Pit caves typically form in limestone as a result of long-term erosion by water. They can be open to the surface or found deep within horizontal caves.
Pit Cave: http://en.wikipedia.org/wiki/Pit_cave
Geocache: http://coord.info/GC1F66R
Pit caves typically form in limestone as a result of long-term erosion by water. They can be open to the surface or found deep within horizontal caves.
Pit Cave: http://en.wikipedia.org/wiki/Pit_cave
Geocache: http://coord.info/GC1F66R
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