Caves

Definition (http://en.wikipedia.org/wiki/Cave)

A cave or cavern is a natural underground space large enough for a human to enter. Caves form naturally by the weathering of rock and often extend deep underground. The word "cave" can also refer to much smaller openings such as sea caves, rock shelters, and grottos. (Wikipedia)

Preferred Units: N/A

Scope Note:
N/A

This term is used for the following terms: 
Cavern

Approved Date
11-Dec-2012

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