Laptev Sea Laptev Sea The Laptev Sea (; ) is a marginal sea of the Arctic Ocean. It is located between the northern coast of Siberia, the Taimyr Peninsula, Severnaya Zemlya and the New Siberian Islands. Its northern boundary passes from the Arctic Cape to a point with co-ordinates of 79°N and 139°E, and ends at the Anisiy Cape. The Kara Sea lies to the west, the East Siberian Sea to the east. The sea is named after the Russian explorers Dmitry Laptev and Khariton Laptev; formerly, it had been known under various names, the last being Nordenskiöld Sea (), after explorer
East Siberian Sea the northernmost city of mainland Russia. The present name was assigned to the sea on 27 June 1935 by Decree of the Soviet Government. Before that, the sea had no distinct name was intermixedly called in Russia as "Indigirskoe", "Kolymskoe", "Severnoe" (Northern), "Sibirskoe" or "Ledovitoe". The International Hydrographic Organization defines the limits of the East Siberian Sea as follows: "On the West." The Eastern limit of Laptev Sea [From the Northern extremity of Kotelni Island – through Kotelni Island to Cape Madvejyi. Then through Malyi Island, to Cape Vaguin on Great Liakhov Island. Thence to Cape Sviaroy Noss on the