Ynys Gwyndwn-mawr, Pembrokeshire

• Parish/Community: Newport
• Unitary Authority: Pembrokeshire
• Region: Wales

• Category: Water Feature
• Type: Island

• Latitude/Longitude: 52°1'14"N 4°52'59"W
• Eastings/Northings: 202273, 239733
• OS Grid: SN022397
• Mapcode Local: GBR CP.GX0G
• Mapcode Global: VH1QH.9GTS

Location and coordinates are for the approximate centre of Ynys Gwyndwn-mawr within this administrative area. Geographic features and populated places may cross administrative borders.