The N&MR passed through the Cambrian Mountains in the deep Talerddig cutting, which formed the summit of the line.

From there it descended towards the coast, reaching the Dyfi valley at the village of Cemmaes Road, where there was a junction with the Mawddwy Railway.

The next station, north of Cemmes Road on the Mawddwy Railway, served the village of Cemmaes.

To avoid confusion with that station, the N&MR's English backers named the junction station using an Anglicised version of the village's Welsh language name.

The signal box and passing loop closed in 1984 as part of rationalization.