Norway has three dependent territories (Norwegian: biland), all uninhabited and located in the Southern Hemisphere. Bouvetøya is a Subantarctic island in the South Atlantic Ocean. Queen Maud Land is a sector of Antarctica which spans between the 20th meridian west and the 45th meridian east. Peter I Island is a volcanic island located 450 kilometres (280 mi) off the coast of Ellsworth Land of continental Antarctica. Svalbard is not formally considered to be a dependency. While the Svalbard Treaty regulates some aspects of that Arctic territory, one article acknowledges that these islands are part of Norway. Similarly, Jan Mayen is recognized as an integral part of the nation. Both are, however, unincorporated areas.