Tywith station had been opened about 1875, initially with only one platform. In 1898 a second platform was opened, and both were constructed to a longer length. Tywith Station was renamed Nantyfyllon on 1 January 1903. A new GWR station was opened at Llangonoyd in 1899; the new station was renamed Llangynwyd in March 1935. Meanwhile, Troedyrhiw Garth Station was built in the 1870s during the time when the GWR was working and managing the L&OR, but the platform was lengthened in 1910, and shortened again in 1938.