The Atlantic Coastal Plain is a low-lying region along the eastern coast of the United States, stretching from New Jersey to Florida. This area is characterized by flat terrain, sandy soils, and a variety of ecosystems, including wetlands and forests. It is bordered by the Atlantic Ocean to the east and features numerous rivers and estuaries. The plain is significant for its biodiversity and serves as a habitat for many species of plants and animals. Major cities like New York City and Miami are located near this region, making it an important area for commerce and tourism.