- Category: Water Feature
- Type: Wetland
- Latitude/Longitude: 54°53'52"N 3°21'17"W
- Eastings/Northings: 313204, 556763
- OS Grid: NY132567
- Mapcode Local: GBR 5C0T.G0
- Mapcode Global: WH6YR.F4MY
Location and coordinates are for the approximate centre of Grune Cast within this administrative area.
Geographic features and populated places may cross administrative borders.