- Category: Water Feature
- Type: Wetland
- Latitude/Longitude: 51°39'10"N 4°8'37"W
- Eastings/Northings: 251803, 197067
- OS Grid: SS518970
- Mapcode Local: GBR GT.CT9L
- Mapcode Global: VH4K0.4Q8B
Location and coordinates are for the approximate centre of Penrhyn Gwyn within this administrative area.
Geographic features and populated places may cross administrative borders.