- Built-Up Area: Pontycymer
- Parish/Community: Garw Valley
- Unitary Authority: Bridgend
- Region: Wales
- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°37'44"N 3°33'43"W
- Eastings/Northings: 291979, 193385
- OS Grid: SS919933
- Mapcode Local: GBR HF.8LR3
- Mapcode Global: VH5GZ.6BR4
Location and coordinates are for the approximate centre of Carn-yr-hyrddod within this administrative area.
Geographic features and populated places may cross administrative borders.