Argentine Antarctica mainland. Argentina was the only nation to have an Antarctic base for 40 years until the British built a base on the same islands. Argentina bases its claims on this sector of Antarctica on the following grounds: Argentina's claim to the Antarctic Peninsula overlaps with the Antarctic claims of Chile, 53°W to 90°W, and the UK claims, 20°W to 80°W. Currently, there are no attempts by Argentina or any other country to enforce territorial claims in Antarctica. See List of Antarctic territorial claims. None of these claims have international recognition and have been suspended by the Antarctic Treaty in 1961.
Research stations in Antarctica station in 1956. In that same year, the United States built McMurdo Station and Amundsen–Scott South Pole Station, and the Soviet Union built Mirny Station. The United States maintains the southernmost Base and the largest base and research station in Antarctica, Amundsen–Scott South Pole Station. The second-southernmost base is the Chinese Kunlun Station at 80°25′02″S during the summer season, and the Russian Vostok Station at 78°27′50″S during the winter season. This map shows permanent research stations only. Research stations in Antarctica A number of governments have set up permanent research stations in Antarctica and these bases are widely distributed. Unlike