Called by the Spanish, Punta del Diablo , Devils Gap Battery stands on the escarpment above the city looking out across the bay at a height of above sea level. During the 1779-1783 Great Siege of Gibraltar it mounted at least one mortar, possibly more. In 1878 two RML 9 inch 12 ton guns were proposed and installed at the battery in June 1881, but later dismounted in 1900. In July 1896 work started on a new platform to the north of the battery for two QF 12 pounder 12 cwt naval Mark I guns which were ready on 31 August 1896.
