AIGASH, an isle, in the parish of Kiltarlity, county of Inverness. This isle is formed by a division into two branches of the river Beauly; it is of an oval figure, and about a mile and a half in circumference, comprising an area of fifty acres. Aigash is chiefly whinstone. It rises, in a slope, about a hundred feet above the level of the water; and being covered with natural oak, birch, alder, and other trees, presents, with the surrounding rocks, a beautiful and picturesque appearance. The islet communicates with the main land by a bridge.