- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°34'14"N 4°0'8"W
- Eastings/Northings: 264401, 298864
- OS Grid: SN644988
- Mapcode Local: GBR 8W.C17B
- Mapcode Global: WH57D.HND3
Location and coordinates are for the approximate centre of Cwm Maethlon within this administrative area.
Geographic features and populated places may cross administrative borders.