Porth-y-post, Isle of Anglesey

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

• Category: Water Feature
• Type: Bay

• Latitude/Longitude: 53°17'0"N 4°38'22"W
• Eastings/Northings: 224125, 379523
• OS Grid: SH241795
• Mapcode Local: GBR GNX0.X2L
• Mapcode Global: WH31B.PQVR

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