I believe its Florida <span />
south: Large plantations with many enslaved people, cotton growth as the main crop
north: Fishing and whaling industry, factories producing canned goods, rich deposits of iron ore
African slavery differed regionally in 18th century based on the product being developed.
During this time period, South Carolina was known for the harvesting of rice. The terrain of this state created ideal conditions for this crop to grow. On the other hand, states like Virginia grew tobacco because of their climate and growing season. This was then extremely different from slaves in the North. Considering the short growing season and frigid temperatures, many slaves did not work on plantations. Rather they worked in the shipping or boating industry since that is what the Northern economy relied on.
The Monroe Doctrine forbidden the European powers from colonizing in the additional lands in the Americas.