| Overview | |
|---|---|
| Headquarters | Llanaelhaearn |
| Locale | Wales |
| Dates of operation | 1864–1962 |
| Successor | Abandoned |
| Technical | |
| Track gauge | 1 ft 11+1⁄2 in (597 mm) |
| Length | 1 mile |
The Trefor Quarry railway was an industrial, 1 ft 11+1⁄2 in (597 mm) narrow-gauge railway connecting the Trefor granite quarry with the pier at Llanaelhaearn on the Llŷn Peninsula.