- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 56°17'39"N 3°45'21"W
- Eastings/Northings: 291415, 712709
- OS Grid: NN914127
- Mapcode Local: GBR 1L.7G4G
- Mapcode Global: WH5PN.81NZ
Location and coordinates are for the approximate centre of East Slack within this administrative area.
Geographic features and populated places may cross administrative borders.