- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°0'3"N 5°1'37"W
- Eastings/Northings: 192317, 237943
- OS Grid: SM923379
- Mapcode Local: GBR CH.J3RL
- Mapcode Global: VH1QD.TY9X
Location and coordinates are for the approximate centre of Carn Gelli within this administrative area.
Geographic features and populated places may cross administrative borders.