- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°53'50"N 4°15'41"W
- Eastings/Northings: 244500, 224500
- OS Grid: SN445245
- Mapcode Local: GBR DJ.QMN3
- Mapcode Global: VH3LB.3K0W
Location and coordinates are for the approximate centre of Nant Crychiau within this administrative area.
Geographic features and populated places may cross administrative borders.