- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 53°2'0"N 3°53'11"W
- Eastings/Northings: 273584, 350124
- OS Grid: SH735501
- Mapcode Local: GBR 60.DY3F
- Mapcode Global: WH55B.80GV
Location and coordinates are for the approximate centre of Cwm Penamnen within this administrative area.
Geographic features and populated places may cross administrative borders.