The privileged geographic location of Isla de León on the coast made this a more or less stable settlement site of man since very faraway times. This led to the exploitation of marine resources, especially for conserved and salted goods. This conservation industry created another auxiliary one: the pottery maker, necessary to manufacture the containers (the pots). The Phoenician and Punic furnaces are exhibited in the rotunda of the same name and constitute an exceptional complex in the west, both for the high number of production structures excavated and for their state of preservation. In it, the remains of two important pottery workshops related to the city of Gadir are exhibited: the Late-Punic pottery of Alta Tower and the Phoenician furnaces of Camposoto Sector III.