- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°38'50"N 3°33'42"W
- Eastings/Northings: 292038, 195446
- OS Grid: SS920954
- Mapcode Local: GBR HF.7DSB
- Mapcode Global: VH5GS.6VVG
Location and coordinates are for the approximate centre of Twyn Crugyrafan within this administrative area.
Geographic features and populated places may cross administrative borders.