The Americas

Extent

The Americas make up most of the land in Earth's Western Hemisphere. The northernmost point of the Americas is Kaffeklubben Island, which is the most northerly point of land on Earth. The southernmost undisputed point is Águila Islet, although the Antarctic islands of Southern Thule are sometimes taken into account. The mainland of the Americas is the world's longest north-to-south landmass. The distance between its two polar extremities, Murchison Promontory on the Boothia Peninsula in northern Canada and Cape Froward in Chilean Patagonia, is roughly 14,000 km (8,700 mi). The mainland's most westerly point is the end of the Seward Peninsula in Alaska; Attu Island, further off the Alaskan coast to the west, is considered the westernmost point of the Americas. Ponta do Seixas in northeastern Brazil forms the easternmost extremity of the mainland, while Nordostrundingen, in Greenland, is the most easterly point of the continental shelf.