- Category: Water Feature
- Type: Island
- Latitude/Longitude: 59°31'1"N 1°39'23"W
- Eastings/Northings: 419545, 1070180
- OS Grid: HZ195701
- Mapcode Local: GBR Q38L.1SK
- Mapcode Global: XHBZJ.T19V
Location and coordinates are for the approximate centre of Green Holm within this administrative area.
Geographic features and populated places may cross administrative borders.