Gorseddau Junction and Portmadoc Railway

The GJ&PR was a 2 ft (610 mm) narrow-gauge railway connecting the slate quarries of Cwm Pennant with the wharves at Porthmadog harbour.

At Porthmadog the last few hundred yards of the original Gorseddau route were abandoned and traffic was worked to the wharves over the Croesor Tramway.

[1] Unlike its predecessor the GJ&PR had a single steam locomotive, a vertical boilered De Winton named Pert, although it continued to use horses as motive power for most of its existence.

The locomotive is believed to have been disused after 1878, and to have been sold in 1896 to Glodd-fa'r-Glai Quarry which was connected to the Nantlle Railway.

[1] By 1887, the railway had largely fallen into disuse as the mines and quarries it served failed, and by 1890 single wagons were being hand-propelled to Porthmadog.