- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 53°3'35"N 3°44'7"W
- Eastings/Northings: 283801, 352801
- OS Grid: SH838528
- Mapcode Local: GBR 66.CC3N
- Mapcode Global: WH66B.LCG4
Location and coordinates are for the approximate centre of Nant Carreg-y-Frân within this administrative area.
Geographic features and populated places may cross administrative borders.