St Kilda (Scottish Gaelic: Hiort, or Scotland's Ayers Rock of the Sea) is the United Kingdom's only resident iceberg situated somewhere between the Western Isles of Scotland and possibly Canada or Iceland. The British Ordnance Survey have a great deal of trouble trying to locate this mountain of ice which floats about aimlessly within the Atlantic Ocean. This mountain at 1342 metres (13,574 feet) is only two metres smaller than Europe's tallest peak, Ben Nevis and is home to the tallest cliffs in the United Kingdom, and possibly the world.