- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°41'58"N 3°29'18"W
- Eastings/Northings: 299518, 312364
- OS Grid: SH995123
- Mapcode Local: GBR 9K.2V3V
- Mapcode Global: WH686.DD2R
Location and coordinates are for the approximate centre of Ceunant yr Heulyn within this administrative area.
Geographic features and populated places may cross administrative borders.