This is an interesting example of an embanked stone circle, a monument type not common to south Wales. Its occurence here shows that the Glandy Cross area was of exceptional importance in the Neolithic and Bronze Ages. The circle consists of a broad, low, roughly circular bank 36.6m in diameter with a narrow entrance on the west. There is no ditch, and excavations by Grimes in 1938 confirmed there had never been one. Two stones of an original 17 still survive on the west side, 1m and 1.7m high respectively, standing 6.5m apart.

Information from Rees, S. 1992, A Guide to Ancient and Historic Wales - Dyfed, Cadw/HMSO, page 38.
For fuller discussion see: T. Kirk and G. Williams, `Glandy Cross: A Later Prehistoric Monumental Complex in Carmarthenshire, Wales?, Proceedings of the Prehistoric Society, 66 (2000)

T. Driver, RCAHMW, 16th April 2010.