Geography of the United States York City, and includes the Florida peninsula. Areas further inland feature rolling hills, mountains, and a diverse collection of temperate and subtropical moist and wet forests. The Appalachian Mountains form a line of low mountains separating the eastern seaboard from the Great Lakes and the Mississippi Basin. The five Great Lakes are located in the north-central portion of the country, four of them forming part of the border with Canada, only Lake Michigan situated entirely within United States. The southeast United States, generally stretching from the Ohio River on south, includes a variety of warm temperate and subtropical moist and
Great Seal of the United States Great Seal of the United States The Great Seal of the United States is used to authenticate certain documents issued by the federal government of the United States. The phrase is used both for the physical seal itself, which is kept by the United States Secretary of State, and more generally for the design impressed upon it. The Great Seal was first used publicly in 1782. The obverse of the Great Seal is used as the national coat of arms of the United States. It is officially used on documents such as United States passports, military insignia, embassy placards, and