- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 57°22'1"N 5°17'8"W
- Eastings/Northings: 202500, 835500
- OS Grid: NH025355
- Mapcode Local: GBR F9B7.TVC
- Mapcode Global: WH1C4.S346
Location and coordinates are for the approximate centre of Carn na Sean-l within this administrative area.
Geographic features and populated places may cross administrative borders.