The Apalachicola River is a river, approximately 112 mi long in the State of Florida. This river's large watershed, known as the ACF River Basin for short, drains an area of approximately 19500sqmi into the Gulf of Mexico. The distance to its farthest headstream in northeast Georgia is approximately 500 miles . Its name comes from the Apalachicola tribe, which used to live along the river.DescriptionThe river is formed on the state line between Florida and Georgia, near the town of Chattahoochee, Florida, approximately northeast of Panama City, by the confluence of the Flint and Chattahoochee rivers. The actual confluence is submerged in the Lake Seminole reservoir formed by the Jim Woodruff Dam. It flows generally south through the forests of the Florida Panhandle, past Bristol. In northern Gulf County, it receives the Chipola River from the west. It flows into Apalachicola Bay, an inlet of the Gulf of Mexico, at Apalachicola. The lower 30 mi (48 km) of the river is surrounded by extensive swamps and wetlands except at the coast.