- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°12'7"N 3°6'6"W
- Eastings/Northings: 324808, 256569
- OS Grid: SO248565
- Mapcode Local: GBR F2.3F7R
- Mapcode Global: VH777.6X45
Location and coordinates are for the approximate centre of Cwm Gwilym within this administrative area.
Geographic features and populated places may cross administrative borders.