- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 51°49'47"N 3°57'31"W
- Eastings/Northings: 265112, 216392
- OS Grid: SN651163
- Mapcode Local: GBR DX.VYFN
- Mapcode Global: VH4JB.B8GM
Location and coordinates are for the approximate centre of Dre-fach within this administrative area.
Geographic features and populated places may cross administrative borders.