Orkney is an archipelago in northern Scotland, 16 kilometres
(10 mi) north of the coast of Caithness. Orkney comprises
approximately 70 islands of which 20 are inhabited. The largest
island, known as the "Mainland" has an area of 523.25 square
kilometres (202.03 sq mi) making it the sixth largest Scottish
island and the tenth-largest island in the British Isles. The
largest settlement and administrative centre is Kirkwall.