Merthyr, Tredegar & Abergavenny Railway

The construction of the Merthyr, Tredegar & Abergavenny Railway was a remarkable engineering achievement. Not only was it one of the most spectacular railways in Britain, but it was also one of the most difficult to build, and its long and steep gradients made it one of the most expensive to operate. The section through the Clydach Gorge was particularly dramatic with the line twisting and turning...