- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°49'20"N 4°44'22"W
- Eastings/Northings: 215500, 328500
- OS Grid: SH155285
- Mapcode Local: GBR GPN7.KQF
- Mapcode Global: WH33M.5B94
Location and coordinates are for the approximate centre of Porthorion within this administrative area.
Geographic features and populated places may cross administrative borders.