SUBIC Situated at the Southern entry point of Zambales and the Northwestern interior of the Subic Bay area, Olongapo City approximately 127 kilometers North of Manila. It's total land area of 18,500 hectares is distributed among 17 barangays (Asinan, East Bajac-Bajac, Banicain, Baretto, New Cabalan, Old Cabalan, Gordon Heights, East Tapinac, West Tapinac, Kababae, Kalalake, Ilalim, Kalaklan, Mabayuan, Pag-asa and Sta. Rita) former US reservation and the Negrito Resettlement areas. Other than the city proper, this is located on a 6.48 sq. kms. Tidal flatland, Olongapo City is characterized by rugged and mountainous terrain. Because of its peculiar geographic location - the Zambales mountains on its three sides, Bataan and Subic Bay at its base - development of city land is limited. Also, the territorial borders from nearby towns are not properly marked.