of Linnay, Green Skerry, Hoe Skerries, Reefdyke, Seal Skerry. Papa Stronsay: Jack's Hole, Jack's Reef. Papa Westray: Cairn Head, Muckle Quoy. Rousay: Little Brig, Muckle Brig. Sanday: Baa Gruna, Shapinsay: Broad Shoal, Grass Holm, Skerry of Vasa. Stronsay: Holms of Spurness, Ingale Skerry, Little Linga, The Bow. Swona: Selki Skerry, South Clett, The Tails of the Tarff, West Wini Skerry. Westray: Holm of Aikerness, Shell Holm, Skea Skerries, Wart Holm. Wyre: Wyre Skerries. The remote islets of Sule Skerry and Sule Stack, which lie west of the archipelago form part of Orkney for local government purposes. See also List of places in Orkney List of Shetland islands List of Outer Hebrides List of islands of Scotland List of the largest islands in the North Sea References and footnotes General references Omand, Donald (ed.) (2003) The Orkney Book. Edinburgh. Birlinn. Specific references and notes Orkney Islands