- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°20'27"N 3°27'14"W
- Eastings/Northings: 301034, 272424
- OS Grid: SO010724
- Mapcode Local: GBR 9L.TQ80
- Mapcode Global: VH690.2FT9
Location and coordinates are for the approximate centre of Cwm-bras within this administrative area.
Geographic features and populated places may cross administrative borders.