Ƙasar Amirka ita ce mafi tsawo a duniya daga arewa zuwa kudu. Nisa tsakanin yankunan biyu, Boothia Peninsula a arewacin Kanada da Cape Froward a Chilean Patagonia, yana da kimanin kilomita 14,000 (8,700 mi). Ƙasar da ke yammacin yankin ita ce ƙarshen Seward Peninsula a Alaska; Attu, daga bakin tekun Alaska zuwa yamma, an dauke shi ne mafi yammacin yankin Amurka.
Ƙasar Antarctica