The Southern half of the original 13 colonies, in which the area has rich farming regions to historical cotton/tobacco farms.
The area that stretches from New York to Alabama includes New York, Pennsylvania, Maryland, North & South Carolina, Georgia, and Alabama.
NY, Pennsylvania, & Maryland have large amounts of population (being up to the north), and generally had factories and large fishing areas.
Going towards the south, we see that it becomes more rural, with farms, then large plantations held by southerners that are also allowed to hold slaves. These usually planted tobacco, and when prices dropped, cotton.
hope this helps