- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°59'20"N 4°1'31"W
- Eastings/Northings: 264149, 345433
- OS Grid: SH641454
- Mapcode Local: GBR 5V.HLPN
- Mapcode Global: WH55G.44GD
Location and coordinates are for the approximate centre of Cwm Croesor within this administrative area.
Geographic features and populated places may cross administrative borders.