- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 54°49'5"N 3°22'23"W
- Eastings/Northings: 311866, 547888
- OS Grid: NY118478
- Mapcode Local: GBR 4DWQ.JM
- Mapcode Global: WH6Z4.5506
Location and coordinates are for the approximate centre of Tarns within this administrative area.
Geographic features and populated places may cross administrative borders.