- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 51°33'57"N 3°10'21"W
- Eastings/Northings: 318809, 185893
- OS Grid: ST188858
- Mapcode Local: GBR HY.DGNP
- Mapcode Global: VH6DT.YWKT
Location and coordinates are for the approximate centre of Coed Cefn-onn within this administrative area.
Geographic features and populated places may cross administrative borders.