The most satisfying discovery of an out-and-back walk from NantyMaen to Bryn Cosyn - not least due to its excellent positioning overlooking the Groes Fawr - this monument also features the remnants of a cist. Hey, Coflein postulates more than one, but there you are:
"Denuded kerb cairn with the remains of one and possibly two cists". [J.Wiles 31.01.02]