The USA makes up of 62 states. Washington, the capital of the United States is situated on the Rotomac River in the District of Columbia. The district is a piece of land which doesn't belong to any state but to all the states. All these states are sovereignty.The USA occupy a large territory and are situated in the central and southern part of North America. The USA is washed by the Atlantic ocean in the east and by the Pacific ocean in the west. In the north, the USA has borders on Canada and in the south on Mexico. The USA is divided into three areas: Eastern area is a highland, central area is a plain and Western area is mountains including the Rocky Mountains and the Sierra Nevada. There are five great lakes in the northern part of the USA. There are: Huron, Michigan, Supireo, Ontario and Erie. They are connected by fast rivers. There is the most famous to the whole world fall called Niagara Fall. Mississippi together with its tributary Missouri is the longest river in the world.