- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°30'41"N 2°6'47"W
- Eastings/Northings: 392775, 512920
- OS Grid: NY927129
- Mapcode Local: GBR FJP8.9J
- Mapcode Global: WHB4H.HVZS
Location and coordinates are for the approximate centre of Collinson's Tarn within this administrative area.
Geographic features and populated places may cross administrative borders.