- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 55°38'35"N 2°16'10"W
- Eastings/Northings: 383139, 638877
- OS Grid: NT831388
- Mapcode Local: GBR D3L5.GX
- Mapcode Global: WH9Z0.3FK6
Location and coordinates are for the approximate centre of Black Mark within this administrative area.
Geographic features and populated places may cross administrative borders.