- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 53°8'43"N 4°3'5"W
- Eastings/Northings: 262885, 362898
- OS Grid: SH628628
- Mapcode Local: GBR 5T.5SBQ
- Mapcode Global: WH54N.Q6WF
Location and coordinates are for the approximate centre of Cwm Graianog within this administrative area.
Geographic features and populated places may cross administrative borders.