- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°26'38"N 1°43'47"W
- Eastings/Northings: 417624, 505434
- OS Grid: NZ176054
- Mapcode Local: GBR JKC1.9Q
- Mapcode Global: WHC66.DKJJ
Location and coordinates are for the approximate centre of Mill Lake within this administrative area.
Geographic features and populated places may cross administrative borders.