Cairns (so called from the Irish “Carn,” which signifies a or pile of stones) were huge heaps of stones, some of them the size of a large house, and containing many thousands of cartloads of stones, usually placed on high hills and mountains, and still existing in many parts of Ireland. According to Toland and others, they were partly erected for Druidical worship, and also as sepulchral monuments over the remains of warriors and kings; and some of these heaps of stones, used as sepulchres, were called by the Irish “Leacht,” and “Taimleacht,” which signify sepulchral monuments.