Trial adit 300 yards east north east of Llwyn celyn isaf. No historical detail available. Probably 19th century trial for lead. Open and used as water supply to farm.
Publications (3)
- Foster-Smith, J.R.; NMRS (1981); British Mining 18 - Non-Ferrous Mines of the South Wales Area, The; ISBN 0 901450 15 4; pp.36,37.
- Hall, G.(1971); Metal Mines of Southern Wales; p. 7.
- NMRS; Newsletter Aug/1991; pp.2-3.
