Pond, shown as silted on OS County series (Anglesey II.4 1889), 96m E-W by 56m, from which (at SH39169480) at leat led c.390m W-WNE-NW to the mine yard of Porth Llanlleiana (Nprn400751); leat partially out of use by 1889.
RCAHMW AP945145/42-4
J.Wiles 29.06.04