What is the terrain of Nashville Basin?

Nashville Basin is part of the Interior Low Plateaus physiographic province of the continental United States. The terrain is characterized by rolling hills and valleys with the highest elevations around 1,100 feet (335 m). The average relief between hills and valleys is around 200 feet (60 m). The topography of the Nashville Basin was formed by erosion from the Cumberland and Tennessee rivers, as well as their tributaries. The area is also characterized by numerous sinkholes, which are formed by the collapse of caves in the underlying limestone bedrock.