NPRN31
Cyfeirnod MapSO00NW
Cyfeirnod GridSO0455006050
Awdurdod Unedol (Lleol)Merthyr Tudful
Hen SirGlamorgan
CymunedCyfarthfa
Math O SafleGWAITH HAEARN
CyfnodÔl-Ganoloesol
DisgrifiadThe Ynysfach Ironworks were established in 1801 by the Crawshays as an extension of their works at Cyfarthfa. Nearby is the engine house (NPRN 33724), now restored as a museum.
RCAHMW, February 2011
