- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°57'9"N 3°2'2"W
- Eastings/Northings: 329044, 228747
- OS Grid: SO290287
- Mapcode Local: GBR F5.M031
- Mapcode Global: VH78M.C5GW
Location and coordinates are for the approximate centre of Cwm Siarpal within this administrative area.
Geographic features and populated places may cross administrative borders.