The passage from Avienus is as follows:—

Staigue Tort, in the County of Kerry, is “an enclosure, nearly circular, 114 feet in diameter from out to out, and in the clear 88 feet from east to west, and 87 from north to south. The stones are put together without any description of mortar or cement; the wall is 13 feet thick at the bottom, and 5 feet 2 inches broad at top at the highest part, where some of the old coping stones still remain, and which is there 17 feet 6 inches high upon the inside. It has one square doorway in the S.S.W. side, 5 feet 9 inches high, with sloping sides, 4 feet 2 inches wide at top, and 5 feet at bottom. In the substance of this massive wall, and opening inwards, are two small chambers; the one on the west side is 12 feet long, 4 feet 7 inches wide, and 6 feet 6 inches high; the northern chamber is 7 feet 4 inches long, 4 feet 9 inches wide, and 7 feet high. They formed a part of the original plan, and were not, like other apertures in some similar structures, filled-up gateways.