- Category: Water Feature
- Type: Island
- Latitude/Longitude: 59°0'32"N 3°12'9"W
- Eastings/Northings: 331029, 1014180
- OS Grid: HY310141
- Mapcode Local: GBR L4GX.MMW
- Mapcode Global: WH69P.ST5F
Location and coordinates are for the approximate centre of Glass Holms within this administrative area.
Geographic features and populated places may cross administrative borders.