| Locale | England |
|---|---|
| Dates of operation | 1904–1909 |
| Track gauge | 3 ft (914 mm) |
| Headquarters | Carlisle |
The Geltsdale Reservoir railway was a 3 ft (914 mm) narrow gauge industrial railway used during the construction of Castle Carrock Reservoir near Carlisle in Cumbria.
Coordinates: 54°52′43″N 2°42′50″W / 54.8785°N 2.7138°W