Named after the ancient Mayan Province of Kimpech, the state of Campeche comprises much of the western half of Mexico's Yucatan Peninsula. Note the lagoon system along the coast. Rivers in southern Campeche drain into the immense Terminos Lagoon, the entrance to which is protected by a long barrier island, Isla Del Carmen. Between the island and the mainland is a channel leading out into the Gulf of Mexico (across top). Vegetation is red and water is blue.