753a92af_necraft__Xbox_360_Edition_Wiki__Description
[Name] Well [Description] 
Wells are cobblestone and fence post structures with a 2x2 set of water in them that is about 10 blocks deep, although they are only 4 blocks deep in Superflat worlds. They are found in most Villages and sometimes all alone in deserts.
Village - Minecraft: Xbox 360 Edition Wiki
Description