Shafts and Adits. Greenly 1919; OS.
“There is an old level in the fault breccia (311, 474), said to have been merely a trial, presumably for chalcopyrite.”
Publications (4)
- Eley p 124 Mining for china clay to make porcelain.
- Glazebrook 1964 p 88 Roman copper mining?
- Greenly p 160, 215, 219, 305, 310 - 13, 473, 845
- Oldham, Tony (1992); Caves and Mines of Anglesey; 75 pages
