Mining in Wales Mining in Wales Mining in Wales provided a significant source of income to the economy of Wales throughout the nineteenth century and early twentieth century. It was key to the Industrial Revolution. Wales was famous for its coal mining, in the Rhondda Valley, the South Wales Valleys and throughout the South Wales coalfield and by 1913 Barry had become the largest coal exporting port in the world, with Cardiff as second, as coal was transported down by rail. Northeast Wales also had its own coalfield and Tower Colliery (closed January 2008) near Hirwaun is regarded by many as the oldest
Senedd former Cardiff Docks, about south of Cardiff Castle. Cardiff Docks had been the largest coal-exporting port in the world, but by the 1980s with the decline of the south Wales coalfield, the area had gradually become derelict. By the 1990s the area was being transformed with the construction of the Cardiff Bay Barrage and had been renamed Cardiff Bay. The building faces south west over Cardiff Bay, it has a glass façade around the entire building and is dominated by a steel roof and wood ceiling. It has three floors, the first and second floors are accessible to the public