- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°32'45"N 1°26'21"W
- Eastings/Northings: 436368, 516888
- OS Grid: NZ363168
- Mapcode Local: GBR LHDW.55
- Mapcode Global: WHD6W.VZSV
Location and coordinates are for the approximate centre of Longnewton Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.