- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°41'6"N 3°3'58"W
- Eastings/Northings: 326382, 199019
- OS Grid: ST263990
- Mapcode Local: GBR J2.55FD
- Mapcode Global: VH79R.SXV2
Location and coordinates are for the approximate centre of Twyn Calch within this administrative area.
Geographic features and populated places may cross administrative borders.