- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°9'39"N 4°4'43"W
- Eastings/Northings: 261126, 364680
- OS Grid: SH611646
- Mapcode Local: GBR 5R.4ZP4
- Mapcode Global: WH54G.BT10
Location and coordinates are for the approximate centre of Llyn Owen-y-ddôl within this administrative area.
Geographic features and populated places may cross administrative borders.