- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°55'57"N 2°13'37"W
- Eastings/Northings: 385911, 671086
- OS Grid: NT859710
- Mapcode Local: GBR NFV1.4DZ
- Mapcode Global: WH9XN.R4NT
Location and coordinates are for the approximate centre of Black Mask within this administrative area.
Geographic features and populated places may cross administrative borders.