 disko island (, ) is a large island in baffin bay, off the west coast of greenland. it has an area of ,norwegian university of science and technology making it the second largest island of greenland (after the main island of greenland) and one of the 100 largest islands in the world. the name qeqertarsuaq means the large island (from qeqertaq = island). ==geography== the island has a length of about , rising to an average height of , peaking at . the port of qeqertarsuaq (named after the island, and also known as godhavn) lies on its southern coast. blÃ¦sedalen valley is north of qeqertarsuaq. the island is separated from nuussuaq peninsula in the northeast by the sullorsuaq strait. to the south of the island lies disko bay, an inlet bay of baffin island.nuussuaq, saga map, tage schjÃ¸tt, 1992 ==history== eric the red paid the first recorded visit to disko island at some time between 982 and 985; the island may have been used as a base for summer hunting and fishing by viking colonists. ==geology== thumb|left|native iron from disko island (size: 4.9 x 2.9 x 1.5 cm) mineral deposits, fossil finds and geological formations add to interest in the area. one of the interesting geological features is the native iron found at the island. a 22&nbsp;ton lump mixture of iron and iron carbide (cohenite) has been found. there are only a few places on earth where native iron is found which is not of meteoric origin.{{cite journal| title = trace elements 
Baffin_Bay Disko_Bay Disko_Island Islands_of_Greenland