- Category: Water Feature
- Type: Island
- Latitude/Longitude: 59°31'4"N 1°39'24"W
- Eastings/Northings: 419520, 1070270
- OS Grid: HZ195702
- Mapcode Local: GBR Q38K.TW1
- Mapcode Global: XHBZJ.T135
Location and coordinates are for the approximate centre of High Holm within this administrative area.
Geographic features and populated places may cross administrative borders.