Porth y Gwîn, Isle of Anglesey

• Parish/Community: Trearddur
• Unitary Authority: Isle of Anglesey
• Region: Wales

• Category: Water Feature
• Type: Bay

• Latitude/Longitude: 53°17'11"N 4°41'4"W
• Eastings/Northings: 221142, 379971
• OS Grid: SH211799
• Mapcode Local: GBR GNT0.DY9
• Mapcode Global: WH31B.0NJC

Location and coordinates are for the approximate centre of Porth y Gwîn within this administrative area. Geographic features and populated places may cross administrative borders.