La Línea de la Concepción (, more often referred to as
La Línea) is a town in
Spain, in the province of
Cádiz in
Andalucia. It lies on the eastern isthmus of the
Bay of Gibraltar, north of the
Gibraltar-Spain border, which lies north of the
British overseas territory of
Gibraltar, with which it has close economic and social links. It is situated on the sandy isthmus which unites the Rock of Gibraltar with the coast in the eastern flank of the Bay of Gibraltar, between Sierra Carbonera and the Rock of Gibraltar.