The Atlantic Coastal Plains is the easternmost region of the United States and is divided into three sections, the Northeast, Mid Atlantic, and Southern. The Atlantic Coastal Plain lies between the Atlantic Ocean and the foothills of the Appalachian Mountains. The Atlantic Plain is narrow in the north, where major cities such as Boston, New York and Philadelphia are located. It broadens and merges with the Gulf Coastal Plain in Florida.
The Northeast Atlantic Coastal Plains or New England has rocky shores, deep natural harbors, thin rocky soil, swift rivers and dense forests. They have cold, long winters and a short growing season. Their economic activities include, lumber, fishing, shipping, trade, and subsistence farming (growing only enough for your family.)
The Mid Atlantic Coastal Plains includes a long shoreline with many harbors and good soil. Their winters are cold and the growing season is short. In their region they make money selling lumber, fishing, shipping, iron mining and certain types of farming.
The Southern Atlantic and Gulf Coastal Plains share many characteristics. Their geography is fairly flat lowlands with fertile soil. A main feature of the Gulf Coast is the great delta of the Mississippi River. Their climate includes mild winters and long summers. They also have a long growing season. Here they have large scale farms, oil and gas production, lumber and fishing, as well as shipping and trade. New Orleans and Houston are major cities of the Gulf Coastal Plain.