- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 55°59'32"N 3°41'34"W
- Eastings/Northings: 294500, 679013
- OS Grid: NS945790
- Mapcode Local: GBR 1N.VJBB
- Mapcode Global: WH5R1.7NQ0
Location and coordinates are for the approximate centre of Millhall Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.