- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°29'50"N 3°35'10"W
- Eastings/Northings: 292403, 290004
- OS Grid: SN924900
- Mapcode Local: GBR 9F.HMNT
- Mapcode Global: VH5BP.SHCF
Location and coordinates are for the approximate centre of Cwm Cidyn within this administrative area.
Geographic features and populated places may cross administrative borders.