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.
Ruins of the old Clydach Works furnaces which provided foundations for the stone crushing plant during the construction of the new Heads of the Valleys road. 18 July 1960.
