Cremlyn Burial Mound is in Beaumaris, Anglesey, Prehistoric Anglesey Burial Chambers.
Archaeological Journal Volume 28 1871 Pages 97-108. 10. Cremlyn [Map], Llanddona par. (E).
Rowlands, Mona, p. 47, mentions a place called Cremlyn, where were stone monuments and a standing cromlech near them, "as if it had been one of their Cremlwynau or sacrificing groves, showing tokens of some extraordinary celebration of that place." This cromlech is noticed by David Thomas; Cambr. Reg., ii. p. 289: Angh. Llwyd, Hist. Anglesey, p. 222, Situated 3½ miles N.W. of Beaumaris, and near Bwrdd Arthur.