English: parallel of latitude
Welsh: paralel lledred
Subject: Addysg
Welsh context: Mallaig y tu mewn i linell a dynnir rhwng Harbour Point (57°0'25"N,5°49'45"W) ac An Fhaochag (57°3'50"N,5°47'25"W) a pharalel lledred 57°N (Loch Nevis)