Vendsyssel-thy

Danish  Nørrejyske Ø  (North Jutland Island), island at the north end of Jutland, Denmark, known as Vendsyssel in the east and Thy in the west. The Limfjorden separates it from the mainland, to which it was attached until 1825, when water erosion cut a channel through the narrow isthmus at Thyborøn. Several bridges, ferries, and a tunnel connect the island with the rest of Jutland. It is the second largest