- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°31'35"N 3°10'34"W
- Eastings/Northings: 318500, 181500
- OS Grid: ST185815
- Mapcode Local: GBR KJ2.SR
- Mapcode Global: VH6F0.WWRN
Location and coordinates are for the approximate centre of Llanishen Resr within this administrative area.
Geographic features and populated places may cross administrative borders.