This section of the wall is located on the northern slope of the Santa Catalina mountain, where the castle of the same name is located. Access is via the ring road in the lower part or via the road that goes up to the castle in the upper part.
The wall of Jaén did not enclose the perimeter of the city, but rather extended to the suburbs around it, which caused successive extensions of the enclosure.
The walls had 10 main gates and many others of smaller size but of great importance to the population: Puerta Nueva, Portón de La Llana, Puerta de Martos, Puerta del Aceituno, Portillo del Sol, Puerta de Baeza, Portillo Arroyo de San Pedro, Gate of San Agustín, Gate of San Bartolomé, Gate of San Francisco, Gate of Santa María, Gate of San Sebastián, Gate of the Chains, Gate of Granada, Gate of Noguera, Postigo de Don Diego, Puerta del Ángel, Portillo de San Jerónimo and Puerta Barrera.
The walls descend along the northern slope of the Santa Catalina mountain and disappear when reaching the city centre at the level of the ring road. On the road to Córdoba there is a section of wall and a tower. On Carrera de Jesús Street there are several cylindrical towers, part of the wall and the Torralba Tower. The wall reappears on the southern slope of the hill, lined with masonry.
The path to visit this fortress on the northern slope of the mountain is very beautiful because it runs through the mountain. It is freely accessible, although in the upper part it becomes steeper and steeper, which makes the journey a bit difficult, but it is worth the trip. It is essential to do this with sports or field shoes