The geography of the Atlantic Coastal Plain most influenced the southern economy during the period from 1620-1865 because it promoted a plantation system of agriculture.
The Atlantic Coastal Plain is a flat coastal region that runs for about 3,500 miles along the shores of the Atlantic Ocean (including the Gulf of Mexico) from New Jersey to the north, through the southeastern United States. The coastal plain does not exceed 200 meters above sea level at the highest points, and penetrates the coast for 50-100 km towards the hinterland.
The conditions of this plain are ideal for agricultural and livestock development, due to the fertility and perfect humidity of the land.
These conditions made the Southern states develop their economies based on agriculture, livestock and the work of the land in general.