- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°12'24"N 3°27'18"W
- Eastings/Northings: 300662, 257503
- OS Grid: SO006575
- Mapcode Local: GBR YL.33L4
- Mapcode Global: VH69L.2S8M
Location and coordinates are for the approximate centre of Llyn Estyn-fâch within this administrative area.
Geographic features and populated places may cross administrative borders.