- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°5'55"N 4°43'26"W
- Eastings/Northings: 213523, 247990
- OS Grid: SN135479
- Mapcode Local: GBR CX.9T3H
- Mapcode Global: VH2MN.2HJZ
Location and coordinates are for the approximate centre of Cwm yr Esgyr within this administrative area.
Geographic features and populated places may cross administrative borders.