The Big Bend region of Florida, United States, is an informal region of the state. Different definitions of the region include counties stretching across northern Florida from the Apalachicola River to the St. Johns River. The Big Bend Coast, however, is the marshy coast without barrier islands that extends along the Gulf of Mexico coast of Florida from the Ocklockonee River (Wakulla County) to Anclote Key (Pasco County).