The fort was part of a series built along the coast which were built in sight of one another as a result of the loss of Gibraltar in 1704. The forts were there to protect shipping and to deter any invasion by a British fort from the enclave of the Rock. This fort was at an important location as this is where the Bay of Gibraltar meets the rugged coast of the Strait of Gibraltar. This fort had a watchtower to enable signalling that was slightly higher on the 20 metre cliffs than the main battery. It was able to house twenty soldiers as well as an artillery officer, a Sargent and a corporal. In 1735 there were four guns and by 1796 there were five guns with two mortars. This was later extended to six 24 pounders.