 Colonsay and Oronsay have produced important pagan Norse burial grounds.An 11th-century cross slab decorated with Irish and Ringerike Viking art on Islay was found in 1838.Rubha an Dùnain, today an uninhabited peninsula to the south of the Cuillin hills on Skye, contains the small Loch na h-Airde, which is connected to the sea by a short artificial canal.