- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°21'54"N 4°31'55"W
- Eastings/Northings: 231618, 388342
- OS Grid: SH316883
- Mapcode Local: GBR HM5T.4SP
- Mapcode Global: WH424.CP33
Location and coordinates are for the approximate centre of Llyn Garreg-lwyd within this administrative area.
Geographic features and populated places may cross administrative borders.