Crannogs

Dwellings built on lakes in Ireland and Scotland. They were constructed on small natural or man-made islands, in lakes, rivers, or swamps. The remains are often partly submerged. This submerged environment offers good preservation for organic material. As an example, in Loch Tay (Scotland), 2500 years old butter has been found. More info.
Found on http://www.abc.se/~pa/uwa/glossary.htm

Crannogs

Crannogs is the name given in Ireland and Scotland to the platforms supported by piles in lakes, which were in use as dwelling-places and places of refuge among the old Celts.
Found on http://www.probertencyclopaedia.com/browse/TC.HTM
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