Why did immigrants decide to move west into the Ohio and Mississippi?

Immigrants moved west into the Ohio and Mississippi regions primarily in search of economic opportunities, such as fertile land for farming and the chance to build a better life. The promise of land ownership through initiatives like the Homestead Act attracted many, as did the availability of resources and the potential for trade along the rivers. Additionally, the westward expansion was fueled by the desire for adventure and the belief in Manifest Destiny, which held that Americans were destined to expand across the continent.