It’s called the Great River Road because it’s along the 10 states the Mississippi River passes. So if you have a fascination with the Mighty River, look no farther. You’ll find lots of upland meadows, plantation houses, thick forests, cliffs, and parks along the way. Drive by stunning white pillared houses standing amid lush gardens and trees dripping with Spanish moss. This fabled road consists of a corridor approximately 70 miles in length located on each side of the river between Baton Rouge and New Orleans, the NPS says.