- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 51°37'1"N 3°2'20"W
- Eastings/Northings: 328167, 191441
- OS Grid: ST281914
- Mapcode Local: GBR J4.969K
- Mapcode Global: VH7B5.8MS3
Location and coordinates are for the approximate centre of Bettws Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.