The Rhondda and Swansea Bay Railway connected the coal mines of the Rhondda Valley to the Swansea Bay ports. Connecting with the Taff Vale Railway at Treherbert, it had branches to Aberavon and Port Talbot docks. It was later extended to Swansea and a branch to Neath was added, bringing the total length to 31 miles. Commercially a poor route, it w...