- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°32'11"N 3°17'6"W
- Eastings/Northings: 310957, 182742
- OS Grid: ST109827
- Mapcode Local: GBR HS.GJC5
- Mapcode Global: VH6DZ.0MLZ
Location and coordinates are for the approximate centre of Cwmllwydrew within this administrative area.
Geographic features and populated places may cross administrative borders.