- Category: Water Feature
- Type: Island
- Latitude/Longitude: 49°57'6"N 6°15'2"W
- Eastings/Northings: 95197, 14395
- OS Grid: SV951143
- Mapcode Local: GBR BXYT.3PX
- Mapcode Global: VGYBZ.LGWT
Location and coordinates are for the approximate centre of Black Lump within this administrative area.
Geographic features and populated places may cross administrative borders.