Georgia’s geography has affected its development in many ways. The fall line divides the Piedmont from the coastal plain. It is the point at which many of Georgia’s rivers, including the Chattahoochee and Savannah Rivers, become unnavigable. As a result, many towns were founded on the rivers at this point, including Augusta, Macon, and Columbus.
The Barrier Islands protect Georgia's coastline, but they remain largely uninhabited. This is because they are difficult to reach, except by boat. A few islands, such as Jekyll Island, are connected to the shore by bridges and causeways, and are important tourist destinations as a result. Thousands of people live here, and millions more visit every year.