which lasted from the 9th to the 13th centuries.There are remains on Lunga of a village of blackhouses abandoned in 1857.

Cairn na Burgh Mòr has the remains of a fort, on the site of an earlier Norse building, thought to have belonged to the chief of Clan MacDougall. Until 1354, it marked the division between the "Nordreys", the northern isles, and the "Sudreys", or southern isles. The smaller island of Cairn na Burgh Beag has the ruins of a fort occupied