The Brecon and Merthyr Tydfil Junction Railway obtained an Act of Parliament on 1 August 1859 to construct a line between Talybont and Pant.

This line, running south from Pontsticill to Pant, is the route still operated by the Brecon Mountain Railway.

[1] Planning for the proposed Brecon Mountain Railway had commenced less than ten years after the closure of Pontsticill Junction, and construction work started in 1978, followed by the grant of a Light Railway Order in 1980.

At Pontsticill the signal box was derelict, and the station house had been in temporary use as a sheep shelter.

The original waiting room was converted into an engineers' workshop, and a rolling stock storage shed was built.