forms of animal life, in addition to a myriad of insects in the short summer. Sea and river fisheries abound in the region. Steamers are operated on some of the lakes, and many ports are ice-free throughout the year. All ports along the Norwegian Sea in the west and the Barents Sea in the northeast to Murmansk are ice-free all year. The Gulf of Bothnia usually freezes over in winter. The ocean floor to the north and west of Sápmi has deposits of petroleum and natural gas. Sápmi contains valuable mineral deposits, particularly iron ore in Sweden, copper in Norway, and nickel and apatite in Russia. Cultural subdivisions East Sápmi East Sápmi consists of the Kola peninsula and the Lake Inari region and is home to the eastern Sami languages. While being the most heavily populated part of Sápmi, this is also the region where the indigenous population and their culture are weakest. Corresponds to the regions marked 6 through 9 on the map below. Central Sápmi Central Sápmi consists of the western part of Finland's Sami Domicile Area, the parts of Norway north of the Saltfjellet mountains and areas on the Swedish side corresponding to this. Central Sápmi is the region where Sami culture is strongest, and home to North Sami—the most widely used Sami language. In the southernmost part of this subregion, however, Sami culture is rather weak—this is where the moribund Bithun Sami language is used. The areas around the Tysfjord fjord in Norway and the river Lule in Sweden are home to the Julev Sami language, one of the more widely used Sami languages. These correspond to the regions marked 3 through 5 on the map below. South Sápmi South Sápmi consists of the areas south of Saltfjellet and corresponding areas in Sweden and is home to the southern languages. In this area, Sami culture is mostly visible inland and on the coast of the Baltic Sea, and the languages are spoken by few. Corresponds to the regions marked 1 and 2 on the map below to the southeast of region 1 in Sweden. Lapland The inner parts of Sápmi are often referred to as Lappi. The name is also found on the Russian side as Laplandige (the name of a natural reservation) and the Norwegian landscape of Finnmark is sometimes titled the "Norwegian Lapland", especially by the travel industry. Lappi- appears as a common component