- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°0'7"N 2°10'3"W
- Eastings/Northings: 389914, 790108
- OS Grid: NO899901
- Mapcode Local: GBR XM.J2JB
- Mapcode Global: WH9RG.N8ZJ
Location and coordinates are for the approximate centre of Tilly Tenant within this administrative area.
Geographic features and populated places may cross administrative borders.