 Map of the NWNGRs | |
| Overview | |
|---|---|
| Locale | Wales |
| Dates of operation | 1877–1916 |
| Successor | Welsh Highland Railway |
| Technical | |
| Track gauge | 1 ft 11+1⁄2 in (597 mm) |
| Length | 12+1⁄2 miles (20.1 km) |
| North Wales Narrow Gauge Railways Act 1872 | |
|---|---|
| Act of Parliament | |
 | |
| Long title | An Act for incorporating the North Wales Narrow Gauge Railways Company; and for other purposes. |
| Citation | 35 & 36 Vict. c. clxxv |
| Dates | |
| Royal assent | 6 August 1872 |
| Text of statute as originally enacted | |
The North Wales Narrow Gauge Railways (NWNGR) was a railway company that planned to build a number of inter-connected 1 ft 11+1⁄2 in (597 mm) narrow-gauge railways across North Wales. The first two of these lines – jointly known as the "Moel Tryfan Undertaking" – were authorised by act of Parliament, the North Wales Narrow Gauge Railways Act 1872 (35 & 36 Vict. c. clxxv) and were built and opened in the 1870s. The original main line ran from Dinas Junction to Bryngwyn and opened in 1877. The second line was a branch from Tryfan Junction to South Snowdon, though shortly after opening, the company designated the Tryfan Junction to Bryngwyn section as the branch, and the Dinas Junction to South Snowdon section as the main line.