Merthyr Tydfil County Borough
Merthyr Tydfil (waliisk: Merthyr Tudful) as en county borough an en principal area uun Süüdwales. Diar wene gud 58.000 minsken üüb en flaak faan 111 km². Hoodstääd as Merthyr Tydfil. Merthyr Tydfil hiart tu't preserved county faan Mid Glamorgan. 

Trinjam lei Powys, Rhondda Cynon Taf an at Caerphilly County Borough.

Luke uk diar 

Principal Area uun Wales