- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 53°9'48"N 4°0'38"W
- Eastings/Northings: 265680, 364833
- OS Grid: SH656648
- Mapcode Local: GBR 5V.4Q78
- Mapcode Global: WH54H.CRF2
Location and coordinates are for the approximate centre of Cwm Pen-Llafar within this administrative area.
Geographic features and populated places may cross administrative borders.