- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°42'3"N 3°41'44"W
- Eastings/Northings: 282913, 201613
- OS Grid: SN829016
- Mapcode Local: GBR H7.433H
- Mapcode Global: VH5GH.WHLW
Location and coordinates are for the approximate centre of Cwm Syfirig within this administrative area.
Geographic features and populated places may cross administrative borders.