- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 53°10'55"N 3°36'19"W
- Eastings/Northings: 292810, 366202
- OS Grid: SH928662
- Mapcode Local: GBR 6D.3DPP
- Mapcode Global: WH65T.L8BW
Location and coordinates are for the approximate centre of Nant y Plwm within this administrative area.
Geographic features and populated places may cross administrative borders.