- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°53'5"N 3°59'52"W
- Eastings/Northings: 265670, 333790
- OS Grid: SH656337
- Mapcode Local: GBR 5W.Q7BH
- Mapcode Global: WH55V.KRH9
Location and coordinates are for the approximate centre of Corn-y-stwc within this administrative area.
Geographic features and populated places may cross administrative borders.