 Jarlshof in Shetland contains the most extensive remains of a Viking site visible anywhere in Britain and it is believed that the Norse inhabited the site continuously from the 9th to the 14th centuries.Amongst the many important finds are drawings scratched on slate of dragon-prowed ships and a bronze-gilt harness mounting made in Ireland in the 8th or 9th centuries.Brough of Birsay in Orkney is another important archaeological site, which like Jarlshof has a continuity of settlement spanning the Pictish and Norse periods.