Thurso is a town and former burgh on the north coast of the Highland council area of Scotland. Situated in the historical County of Caithnes…Thurso is a town and former burgh on the north coast of the Highland council area of Scotland. Situated in the historical County of Caithness, it is the northernmost town on the island of Great Britain. From a latitudinal standpoint, Thurso is located further north than the southernmost point of Norway and in addition lies more than 500 miles north of London.