Jan Mayen Island is a volcanic island in the Arctic Ocean and part of the Kingdom of Norway. It is 55 km long and 373 km2 in area, partly covered by glaciers.The island is mountainous, the highest summit being the Beerenberg volcano in the north. The isthmus is the location of the two largest lakes of the island, South Lagoon, and North Lagoon. A third lake is called Ullerenglaguna (Ullereng Lagoon). Jan Mayen was formed by the Jan Mayen hotspot.
Jan Mayen Island has no known exploitable natural resources. Economic activity is limited to providing services for employees of Norway's radio communications and meteorological stations located on the island. Jan Mayen has one unpaved airstrip, Jan Mayensfield, which is about 1,585 metres long, and the 124.1 km of coast has no ports or harbours, only offshore anchorages.