- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 54°51'9"N 3°9'42"W
- Eastings/Northings: 325500, 551500
- OS Grid: NY255515
- Mapcode Local: GBR 6DCB.86
- Mapcode Global: WH6Z1.D9K5
Location and coordinates are for the approximate centre of Martin Tarn within this administrative area.
Geographic features and populated places may cross administrative borders.