‘The Isle of Tiree: ‘The ground abounds with flint stone … There are several forts in the isle; one in the middle of it, and Dun-Taelk in Baelly Petris: they are in form the same with those in the northern isles. There are several great and small circles of stone in this isle.’ Martin Martin (1695 (1994)) A Description of the Western Islands of Scotland circa 1695, Birlinn: pp. 295–6.