- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 53°25'53"N 4°25'56"W
- Eastings/Northings: 238500, 395500
- OS Grid: SH385955
- Mapcode Local: GBR HMFM.NFN
- Mapcode Global: WH41Z.W0JP
Location and coordinates are for the approximate centre of Porth Llanlleiana within this administrative area.
Geographic features and populated places may cross administrative borders.