The only state south of Georgia in the United States is Florida. These two states share a 200-mile-long relatively straight border stretching from the Atlantic Ocean to the Alabama state line.
The Florida-Georgia border area is heavily traveled, with U.S. I-10 running just inside Florida for the entire length of the border. To the east, the border is defined by St. Mary's River. Kings Bay, Georgia, which is one of the largest military submarine bases in the United States, is adjacent to the border and the Atlantic Ocean. To the west, the border ends at the Chattahoochee River just north of the Apalachicola region, which is known for tourism and seafood. Until Florida became part of the United States in 1845, there were no states south of Georgia.