Rhondda Cynon Taf

Rhondda Cynon Taf is a county borough in the south-east of Wales. It consists of five valleys: the Rhondda Fawr, Rhondda Fach, Cynon, Taff (Welsh: "Taf") and Ely valleys, plus a number of towns and villages away from the valleys. Aberdare is the biggest town.
About 237,000 people live in the borough. 
The area was formerly the main coal mining area in Wales. In the nineteenth century the Rhondda had over 60 mines. There were also a lot of iron works.