Listed as an Asset of Cultural Interest since 1985, the remains of Bollo Tower sit atop a 159-metre hill in a flat area. It commands a great view of the surroundings, including the Águila Tower to the northwest, and Lopera Tower to the southeast.
The square, two-storey tower was built with large ashlars. The lower floor is vaulted, while the upper level is accessed by a staircase. The remains of some walls of varying thickness (0.60 centimetres to 1 metre) can be found around the tower. These walls may have been a retaining wall or a livestock pen where, as in other towers (Lopera and Águila), animals could be protected.
This low medieval tower was part of the defensive and surveillance system in place to protect the area from the Nasrid Kingdom of Granada.