Gulf Coast of the United States Pensacola, St. Petersburg, Tampa, and increasingly, Sarasota. All are the centers of their respective metropolitan areas and contain large ports. (Baton Rouge is relatively far from the Gulf of Mexico; its port is on the Mississippi River, as is the port of New Orleans.) The Gulf Coast is made of many inlets, bays, and lagoons. The coast is also intersected by numerous rivers, the largest of which is the Mississippi River. Much of the land along the Gulf Coast is, or was, marshland. Ringing the Gulf Coast is the Gulf Coastal Plain which reaches from Southern Texas to the western
Department of the Gulf Department of the Gulf The Department of the Gulf was a command of the United States Army in the nineteenth and early twentieth centuries and of the Confederate States Army during the Civil War. The department was constituted on February 23, 1862 when the United States War Department issued General Orders No. 20; the department consisted of "...all of the coast of the Gulf of Mexico west of Pensacola harbor, and so much of the Gulf States as may be occupied by the forces under Major General B.F. Butler." On March 20, 1862, Butler activated his command at Ship Island,