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Rh of the bleak Bryn Cefn, about ten miles west from Swansea. It forms the centre of a very extensive group of monuments—eighty cairns, at least, are still to be counted in an area less than half a mile in length, by a quarter of a mile in width. These are mostly small, 12 to 15 feet in diameter; one, 20 feet across, was opened by Sir Gardner Wilkinson, but proved to contain no interment. The largest is 68 feet in diameter, but has not been opened. About 350 feet from this is the dolmen. The cap stone is 14 feet 6 inches in length, 7 feet 5 inches in height, and 6 feet 8 inches in breadth even now, but a very large piece has been broken off, and now lies beside it, measuring upwards of 3 feet in thickness; and another piece seems to have been broken off on the other end, so that when complete it must have weighed between 35 and 40 tons. It rested originally on ten or eleven upright stones, two of which, however, have fallen, and only four now touch the cap stone. Sir Gardner is of opinion that it once was covered with a tumulus; but this