Earthworks representing a c.4.0-6.0m wide bank, giving the appearance of having been ditched on either side, running c.78m E-W, N of St Non's Chapel, along the line of a field boundary portrayed on OS County series (Pembroke. XX.3 1889).
RCAHMW AP945018/46-9
Defines N of rather rectilinear field enclosure, c.135m E-W by 120m, that appears earlier than surrounding fields. St Non's Chapel (Nprn301109) is set towards the top of the enclosure, with St Non's Well (Nprn32511) at its NE angle; possibly originally serving as chapel precinct, enclosing a gentle dell, descending to sea cliffs on the S.
J.Wiles 15.04.04