Garnddyrys Ironworks (nprn 34137) was a forge in operation c1817-61. The tip is primarily an earthwork now grassed over, but including some building rubble, approximately 500m NE-SW by 80m maximum, narrower at the N end, and a maximum of 15m high. The S end, with exposed forge slag and breeze, has been partially excavated.
R Hayman, Hayman & Horton, 26/11/2003