These cookies are absolutely essential for our website to function properly.
We use Google Analytics to measure how you use the website so we can improve it based on user needs.
These cookies may be set by third party websites and do things like measure how you view YouTube videos.
Blaencwm Water Supply. Plan showing rail track from Swansea (tunnel) to Treherbert. Drawing no. '139091'. Original of 1996.100/151. Scale 40ft-1inch
