Against the evidence just given, that tradition places Rhita's grave on the top of Snowdon, a passing mention by Derfel Hughes (p. 52) is of no avail, though to the effect that it is on the top of the neighbouring mountain called Carned Lywelyn, 'Llewelyn's Cairn,' that Rhita's Cairn was raised. He deserves more attention, however, when he places Carned Drystan, 'Tristan or Tristram's Cairn,' on a spur of that mountain, to wit, towards the east above Ffynnon y Llyffaint [65]. For it is worthy of note that the name of Drystan, associated with Arthur in the later romances, should figure with that of Arthur in the topography of the same Snowdon district.
Before leaving Snowdon I may mention a cave near a small stream not far from Llyn Gwynain, about a mile and a half above Dinas Emrys. In the Llwyd letter (printed in the Cambrian Journal for 1859, pp. 142, 209), on which I have already drawn, it is called Ogo'r Gwr Blew, 'the Hairy Man's Cave'; and the story relates how the Gwr Blew who lived in it was fatally wounded by a woman who happened to be at home, alone, in one of the nearest farm houses when the Gwr Blew came to plunder it. Its sole interest here is that a later version [66] identifies the Hairy Man with Owen Lawgoch, after modifying the former's designation y Gwr Blew, which literally meant 'the Hair Man,' into y Gwr Blewog, 'the Hairy Man.' This doubtful instance of the presence of Owen Lawgoch in the folklore of North Wales seems to stand alone.