Administrative divisions of Norway Norway", although they are not allocated to a particular county and have not been declared as dependencies. Norway has three dependent territories (), all uninhabited and located in the Southern Hemisphere. Bouvet Island is a Subantarctic island in the South Atlantic Ocean. Queen Maud Land is a sector of Antarctica which spans between 20° west and 45° east. Peter I Island is a volcanic island located off the coast of Ellsworth Land of continental Antarctica. Both Peter I Island and Queen Maud Land are south of 60°S and are thus part of the Antarctic Treaty System. While the treaty states
Atlantic Ocean has a volume of . The North Atlantic covers (11.5%) and the South Atlantic (11.1%). The average depth is and the maximum depth, the Milwaukee Deep in the Puerto Rico Trench, is . The bathymetry of the Atlantic is dominated by a submarine mountain range called the Mid-Atlantic Ridge (MAR). It runs from 87°N or south of the North Pole to the subantarctic Bouvet Island at 42°S. The MAR divides the Atlantic longitudinally into two halves, in each of which a series of basins are delimited by secondary, transverse ridges. The MAR reaches above along most of its length, but