- Category: Water Feature
- Type: Island
- Latitude/Longitude: 60°18'28"N 1°28'22"W
- Eastings/Northings: 429226, 1158320
- OS Grid: HU292583
- Mapcode Local: GBR Q1QH.FS6
- Mapcode Global: XHD2H.65TK
Location and coordinates are for the approximate centre of Green Holm within this administrative area.
Geographic features and populated places may cross administrative borders.