1) Town in Blaenau Gwent 
===Industrialisation=== The first recorded iron works in the Sirhowy Valley was Pont Gwaith Yr Hearn, developed by two Bretons and worked by men from Penydarren, Merthyr Tydfil. The Sirhowy Iron Works was erected in 1750 by Mr Kettle of Shropshire. In 1778 Kettle sold this ironworks to Thomas Atkinson and William Barrow, who came to the area from ...