The economic capital of Lower Louisiana was actually Natchez, Mississippi, also known as the “Walnut Hills.” This city was the economic center of the antebellum plantation country that formed the core of the modern-day states of Mississippi, Alabama, and Louisiana. This dominance was because Natchez was the first major settlement for European Americans trading into and through the Mississippi River Valley, and for two decades Natchez was the wealthiest city per capita in the US.