By total area (including its waters), Canada is the second-largest country in the world, after Russia. By land area alone, however, Canada ranks fourth, due to having the world's largest proportion of fresh water lakes. Stretching from the Atlantic Ocean in the east, along the Arctic Ocean to the north, and to the Pacific Ocean in the west, the country encompasses  of territory. Canada also has vast maritime terrain, with the world's longest coastline of . In addition to sharing the world's largest land border with the United States—spanning —Canada shares a maritime boundary with Greenland to the northeast and with the France's overseas collectivity of Saint Pierre and Miquelon to the southeast. Canada is also home to the world's northernmost settlement, Canadian Forces Station Alert, on the northern tip of Ellesmere Island—latitude 82.5°N—which lies  from the North Pole.