Colonsay

Colonsay (; ; ) is an island in the Inner Hebrides of Scotland, located north of Islay and south of Mull. The ancestral home of Clan Macfie and the Colonsay branch of Clan MacNeil, it is in the council area of Argyll and Bute and has an area of . Aligned on a south-west to north-east axis, it measures in length and reaches at its widest point.

== Geology == The Colonsay Group, which takes its name from the island, is an estimated sequence of mildly metamorphosed Neoproterozoic sedimentary rocks that also outcrop on the islands of Islay and Oronsay and the surrounding seabed. The sequence has been correlated with the Grampian Group, the oldest part of the Dalradian Supergroup. It includes the metawackes of the Oronsay Greywacke Formation, the sandstones of the Dun Gallain Grit Formation, the metasandstones and metamudstones of the Machrins Arkose, Kilchattan and Milbuie formations, the sandstones and phyllites of the Kiloran Flags Formation and the phyllitic semipelites and quartzites of the Staosnaig Phyllite Formation. In the far north at the north end of Traigh Ban is an outcrop of the orthogneiss of the Palaeoproterozoic age Rhinns Complex named from the larger outcrop on nearby Islay.