Battery Crockett, this gun emplacement was initially constructed in 1905 and was completed in 1908 at a cost of $290,049.
It was one of the six "disappearing" gun batteries that formed the interlocking field of fire which totally encircled the island. The battery was armed with two 12-inch seacoast guns mounted on disappearing carriages behind a concrete parapet. Its range was 17,000 yards and was capable of 170-degree traverse with overlapping fields or a total of 220 degrees coverage for the battery. The design of this battery was very similar to Battery Cheney and Battery Wheeler. It was located centrally on the island and firing basically south across the major southern channel into Manila Bay.
(source: corregidor island)