At the Hollyford Mines, Co. Tipperary, three veins were worked for copper at three locations, intermittently from 1816 until 1839. The main period of working was 1845 until 1858, producing a total of 3917 tons of ore. The engine shaft eventually reached a depth of 110 fathoms (201 m). These are the remains of the second chimney at the main site, in woodland about 60 metres southeast of the most obvious chimney.

Bron: https://www.facebook.com/165987500136619/photos/at-the-hollyford-mines-co-tipperary-three-veins-were-worked-for-copper-at-three-/2003380579730626/

Een PDF met informatie over de Hollyford mines.

Location and a view into the deep, open mine shaft.

Bron:  https://secure.dccae.gov.ie/GSI_DOWNLOAD/Geoheritage/Reports/TY035_Hollyford_Mines.pdf