- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 57°30'23"N 4°42'50"W
- Eastings/Northings: 237500, 849500
- OS Grid: NH375495
- Mapcode Local: GBR G8QW.KHV
- Mapcode Global: WH2CS.KLHB
Location and coordinates are for the approximate centre of Orrin Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.