- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°12'54"N 3°45'56"W
- Eastings/Northings: 282187, 370137
- OS Grid: SH821701
- Mapcode Local: GBR 65.1HQ8
- Mapcode Global: WH65K.4G10
Location and coordinates are for the approximate centre of Llyn Nant-y-cerrig within this administrative area.
Geographic features and populated places may cross administrative borders.