From the source, the Missixi River is the largest tributary in the eastern part of the Rocky Mountains, with a total length of 6,020 kilometers, ranking fourth in the world, second only to the Nile in Africa, the Amazon River in South America and the Yangtze River in China. The longest river, the Mississippi River Basin, starts from the Great Lakes near the Great Lakes in the north and reaches the Gulf of Mexico in the south, connecting the Appalachian Mountains in the east and the Rocky Mountains in the west. 1/8 area. The Mississippi River gathers more than 7000 tributaries. The tributary of the west bank is longer than that of the east bank, forming a huge asymmetric dendritic water system. This river is rich in water, and the average annual flow near the estuary is 18800 cubic meters per second.
As the central river of industrialized countries, the Mississippi River, once uncontrollable and flowing through the most fertile farmland in North America, has now been controlled and utilized by human beings. The Mississippi Basin is a great plain connected by the Mississippi River and thousands of rivers. The vast river network covers more than one third of the country's land area. With the Mississippi River as the shipping network, there are estuaries in the vast inland of the United States, and the rich goods in the United States can be transported by water, with low transportation cost and sold to the whole country and even the world.
The United States also restored the Mississippi River basin and the five Great Lakes by building canals. The continental United States is equivalent to being surrounded by water on three sides, and it is open to the vast inland areas through inland river transportation. For the United States, the Great Mississippi River is its geographical core, with the Appalachian Mountains in the east, the Rocky Mountains in the west, the Great Lakes in the north and the Gulf of Mexico in the south. Mississippi and North America are the largest states in the United States. The Mississippi River is the mother river of the United States, and the Mississippi Valley is the geographical core of the United States. It is the key to the early rise of American economy and one of the long-term prosperity and strong geographical foundations of the United States, which shows how useful the Mississippi River is to the United States.