Geography and topography were the most influential factors in creating three different regions in Colonial America. New England had rocky soil which was not good for farming. Therefore many settlers became fishermen.
In the Middle region, the settlers had iron, cattle, forests, and good farming land. They farmed corn and wheat, made tools with the iron, and produced lumber.
In the Southern region, there was a long growing season, warm weather, and fertile soil which was great for farming crops. New England, Middle, and Southern regions were defined by different geography.