United States of America

The terrain of the United States is varied, with high terrain in the west and low terrain in the east. There are coastal plains in the east coast, which are wide in the south and narrow in the north, extending all the way to New Jersey. There are also some glacial sedimentary plains in Long Island and other places. Behind the coastal plain is the undulating foothills, extending to the Appalachian Mountains in North Carolina and New Hampshire, which are 1,830 meters high. Map of the United States Map of the United States To the west of the Appalachian Mountains is the Central Plains of the United States, which is relatively flat. The Great Lakes and Mississippi-Missouri River Basin, the fourth largest river in the world, are also located here. West of the Mississippi River, the topography of the inner plain began to rise, and finally it entered the Great Plains of the central United States, which has a vast area and few topographic features. In the western part of the Great Plains, there are towering Rocky Mountains, which divide the continental United States in two from south to north, and the highest peak in Colorado reaches 4,270 meters. There are Sierra Nevada and Coastal Mountains on the west coast. There used to be frequent volcanic activity in the Rocky Mountains; There is only one area left (super volcano in Yellowstone National Park, Wyoming-probably the largest active volcano in the world). The highest mountain in the United States is Mount McKinley, with an altitude of 6,193 meters. It is also the highest peak in North America.