- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 51°24'32"N 0°22'52"W
- Eastings/Northings: 512690, 169027
- OS Grid: TQ126690
- Mapcode Local: GBR 4R.YCH
- Mapcode Global: VHFTS.BVV5
Location and coordinates are for the approximate centre of Sunnyside Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.