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
The Great Lakes Group Old River Channel on the Cuyahoga River in Cleveland, Ohio. In 2007, the Shipyard began new construction of tugboats. On July 29, 2011, the Shipyard debuted its new Mobile Vessel Hoist, named "America" after one of the company's original tugboats. The 770-ton hoist, manufactured by Marine Travelift, is the largest of its kind on the Great Lakes, second-largest in the Western Hemisphere and third-largest in the world. Great Lakes Shipyard recently teamed up with Rolls-Royce Commercial Marine Inc. to create a marine service center. Rolls-Royce's repair and overhaul services in the Great Lakes Region will be performed by Rolls-Royce in