- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°20'7"N 3°23'16"W
- Eastings/Northings: 305534, 271717
- OS Grid: SO055717
- Mapcode Local: GBR 9P.TVZX
- Mapcode Global: VH691.7KBJ
Location and coordinates are for the approximate centre of Cwm Poeth within this administrative area.
Geographic features and populated places may cross administrative borders.