- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°43'10"N 4°9'4"W
- Eastings/Northings: 251500, 204500
- OS Grid: SN515045
- Mapcode Local: GBR GS.RYYR
- Mapcode Global: VH4JT.019N
Location and coordinates are for the approximate centre of Upper Lliedi Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.