- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 54°14'34"N 1°11'20"W
- Eastings/Northings: 452942, 483326
- OS Grid: SE529833
- Mapcode Local: GBR NM4C.CS
- Mapcode Global: WHD8K.PMY5
Location and coordinates are for the approximate centre of Flassen Gill within this administrative area.
Geographic features and populated places may cross administrative borders.