- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°37'28"N 3°44'49"W
- Eastings/Northings: 281832, 304408
- OS Grid: SH818044
- Mapcode Local: GBR 96.7Q1Z
- Mapcode Global: WH68G.D9WB
Location and coordinates are for the approximate centre of Dyffryn Dyfi within this administrative area.
Geographic features and populated places may cross administrative borders.