- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°26'8"N 3°34'54"W
- Eastings/Northings: 292558, 283153
- OS Grid: SN925831
- Mapcode Local: GBR 9F.MNRF
- Mapcode Global: VH5C2.V1RJ
Location and coordinates are for the approximate centre of Cwm Gwyddel within this administrative area.
Geographic features and populated places may cross administrative borders.