Abertillery is the largest town of the Ebbw Fach valley in what was the historic county of Monmouthshire. Following local government reorganisation it became part of the Blaenau Gwent County Borough administrative area.
Before the coming of major industry, Abertillery was little more than an area of scattered farms in the ancient parish of Aberystruth. St Illtyd's Church (NPRN 12897) overlooking the town dates to the 13th century ? probably with 6th century origins. The area's first deep coal mine was sunk in 1843.
Additional source: https://en.wikipedia.org/wiki/Abertillery£Local_history

RCAHMW, 8 June 2017